C1045 RFP Westside Subway Extension QA Log as of 11.08.13

RFP NO. C1045

1 06.18.13 It would be beneficial to view the exploratory shaft as it is being excavated. WillLACMTA arrange a site visit of the exploratory shaft (Contract C1034)?

Metro has made arrangements for the C1045 proposers to visit the PLE ExploratoryShaft site located at 6006 W Wilshire Blvd for the purpose of viewing the installation

of the soldier piles during the week of July 15th and July 22nd between the hours of7AM to 3:30PM. Visitors need to arrive at the jobsite wearing full PPE (hardhat,safety glasses, vest and boots). Visitors are to check in with the Resident Engineerfor an orientation and safety briefing. Visitors are to follow the instructions of Metrostaff and the contractor as related to viewing areas and safety while on the jobsite.Any statements made by Metro staff or the contractor while at the jobsite visit are notbinding and do not change the contract C1045. Other jobsite visits will bescheduled in the future for viewing of the excavation/lagging process. The projectrequires off-street parking. Visitors are encouraged to park at the Metro-leased lotlocated on the southeast corner of Ogden Drive and Genesse Avenue (Opposite theExploratory Shaft).

07.05.13

2 06.18.13 Will LACMTA make soil samples/borings available for viewing? Metro will provide a second and FINAL viewing of cores samples at the SW corner ofWilshire/Crenshaw on Wednesday and Thursday, September 25th and 26th,respectively between the hours of 9am to 4pm. July 24th and July 25th between thehours of 9:00 am and 4:00 pm, at the offices of AMEC Environment & Infrastructure,located at: 6001 Rickenbacker Road Los Angeles, CA 90040. The sample borings(refer to attached table) include soil and rock conditions encountered along thetunnel alignment, and were selected considering tunnel and station locations,depths, geologic conditions to be encountered, and the presence of tar and transitionareas. If proposers would like to view additional Section 1 borings, please emailEva Rodriguez at [email protected]. See attached table for Sample BoringsAvailability Dates. Proposers attending this FINAL viewing must contact EvaRodriguez via email at [email protected] to schedule a viewing time.

07.09.1308.30.13

3 07.11.13 The Metro Rail Design Criteria states that train control and communication roomsshall be protected with an approved non-water based special extinguishing system(such as an inergen system or equivalent), that does not damage or affect theperformance of installed equipment. In the latest revised specs it says that In traincontrol and communication room, provide hydraulically designed, single interlock,fully supervised pre-action sprinkler system, with electrically activated cross zonedsmoke detectors. Am I Correct to assume that for the train control andcommunications rooms are to have an inergen system or equivalent, with a preactionsystem? Also how are the electric service vaults, aux power, and traction powersubstation going to be protected since they are the exception to not having automaticfire sprinkler systems in them?

Contractor shall provide a water-based Pre-action Fire Protection (sprinkler) Systemfor Train Control and Communication Rooms, not both water-based and non water-based (Inergen or equivalent) systems. Paragraph 2.6.6.2 E. and 2.6.2.1 of the FLSCriteria both allow for the use of a water-based Pre-Action fire sprinkler system.Paragraph 2.6.2.4 will be revised by Metro to allow for the alternate use of a nonwater-based (Inergen or equivalent) Fire Protection System, subject to the approvalof the Agency Having Jurisdiction (AHJ). Electric Service vaults, Aux Power andTraction Power substations shall be provided with Fire Extinguishers per Paragraph2.6.4.of the FLS Criteria.”

07.19.13

WESTSIDE SUBWAY EXTENSION PROJECT, SECTION 1 (D/B)

QUESTION & ANSWER LOG

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4 07.16.13 Does the Westside Subway Extension project include an upgrade, renovation to theexisting subway operations control center?

Contact C1045 does not include any upgrades or renovations to the existing subwayoperations control center (Rail Operations Center –ROC). The Purple LineExtension Project does include funding for upgrades and renovations to the existingRail Operations Center (ROC) to be completed by others.

07.25.13

5 07.17.13 Will there be a new vehicle maintenance facility associated with this project? Contract C1045 does not include a new vehicle maintenance facility. The PurpleLine Extension Project does include upgrades (additional track and a new building)within and south of the existing Metro Red Line Division 20 Yard. This SOW will beincluded in future PLE contracts.

07.25.13

6 07.19.13 1.07 Part B states an XER file ( a primavera backup file) has been provided. CanMetro provide the referenced XER file?

The XER file will be provided at Notice of Award to the winning proposer. 08.16.13

7 07.19.13 3.3 Site Response Analysis and Free-Field Differential Displacement, last paragraph,last sentence stipulates: A revised site response analysis will be performed for theWilshire/Fairfax Station and results will be submitted as an addendum to this report".Please advise when the revision will be available?

To be provided in a future amendment. 08.16.13

8 07.19.13 1.2 Subsurface Investigations states: "As of the date of preparation of this GBR,additional subsurface investigations are planned. They will provide furtherinformation on the Fernando Formation including characterization of discontinuitieswithin the formation and their potential as a source of gas. This information will allowconsideration of a deeper profile for the tunnels, and additional characterization ofgas conditions within Section 1. The results of these investigations will be given tothe prospective Design-Build Teams as they become available." Please advise whenrevised GBR will be issued.

Results of new Geotechnical investigations will be provided in future amendment. Data from Reach 2 followed by data from the deep borings from Reach 1.

08.16.13

9 07.19.13 The tail track grade of 3.9% has been approved as a design deviation against MRDC4.1.6.4.C2 clause with respect to stub end track at the west end of the project. Sincethe tail tracks will serve as storage track (4 car per track). Also , please clarify adesign deviation against MRDC 4.1.6.4.C3 is available, or MRDC 4.1.6.4.C3 is notapplicable?

The tracks west of Wilshire/La Cienega station are considered temporary "stub endtracks" and a deviation has been approved against MRDC4.1.6.4.C2. MRDC 4.1.6.4.C3 concerning "storage tracks" is not applicable to thissame infrastructure.

08.02.13

10 07.19.13 MRDC Fire/Life/Safety Criteria stipulates "The walkway clearance envelope abovethe walking surface shall measure 30 inches wide by 80 inches high and shall beclear of all obstructions including the tunnel handrail and the vehicle dynamicenvelope". However, Drawing Y2001 and Y-2002 show the walkway envelope is 2ftwide at the top and bottom and 2'-6" at 4'-8" above the walkway surface. However,there is not an approved design deviation. Please provide the approved designdeviation or the Proposer shall assume that a larger tunnel diameter will be requiredto satisfy the 2'-6" by 6'-8" clearance envelope requirement.

An approved deviation will be provided in future amendment. 08.23.13


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11 07.19.13 Summary of Work, Section 1.02, Subsection 2.c.1 describes cross passagerequirements. However, the low and high level requirements for surge chamber ateach cross passage have not been provided with the contract documents. Pleaseprovide the requirements.

The Low and High levels as well as the size of the surge chamber shall bedetermined by the Final Designer based on the maximum anticipated flow.Consideration shall be given to infiltration flow, fire standpipe and deluge systems asa minimum. Infiltration flow shall be discharged into the city sewer system, whichrequires an industrial wastewater permit and may require pretreatment. Stormdrains shall be considered for discharge of deluge and standpipe water flows. Thedischarge of deluge and standpipe water flows, including the testing of systems, areexempt from NPDES guidelines per LA County MS4 Permit. Contractor shallconsider the locations and capacities of the sewer and storm drains for potentialdischarge in his design.

09.16.13

12 07.19.13 Summary of Work, Section 1.04, Subsection B mentions about advanced contractsC1048, C0155, C1056, and Division 20 Yard. Please provide these contractdocuments.

Contract C1048 Advanced Utility Relocations Contract Wilshire/La Brea Station wasprovided as a reference document in Amendment 1. Subject to availability otherrelated contracts will be provided with future amendments.

08.02.13

13 07.19.13 Clause 2.02.J.1.a.3 states “…to maximize potential and kinematic energy …” Pleaseclarify the intent or meaning of this clause. Does it mean that the vertical alignmentbetween stations is fixed and cannot be amended, refined, and optimized?

To be clarified in future amendment. 08.16.13

14 07.19.13 The General Requirements limit the change in profile from the PE design to 5’, andnotes the traction power efficiencies of having stations at high points. Please clarify asag profile between stations is mandatory.


15 07.19.13 The Building & Adjacent Structure Protection Report included as part of TechnicalReports describes tunneling impact on the building and structures along thealignment. However, the report does not cover the excavation impact on the buildingand structures adjacent to station sites. The Proposer wonders if Metro has done asimilar impact evaluation for station excavation. If yes, please provide the impactassessment.

The report will be provided in future amendment. 08.16.13

16 07.19.13 Will LACMTA make bulk soil samples of the tar sand excavated from the test pitavailable for contractors to test?

Proposers may request soil samples from the Exploratory Shaft construction site.Arrangements and pick up times must be coordinated with Eva Rodriguez at (213)922-1034 or via email at [email protected]. Metro does not warrant theaccuracy or representation of all conditions of the soil samples obtained from thesoldier pile drilling in the Wilshire/Fairfax station area or Tar Sands. Also, proposersreceiving samples assume the risk of interpretation of the samples obtained.Proposers are also reminded that the Contractor must properly dispose ofcontaminated soils at the appropriate disposal sites and comply with ContractDocument including but not limited to SP-21- Hazardous Substance Managementand GC-41 – Environmental Compliance.

08.02.13

17 07.19.13 Will Metro make BIM files available? As per LOI-RFP pg 1-4 "The CADD files for the Project Definition Drawings shall beprovided only to LACMTA Pre-Qualified Firms/Teams listed in Exhibit A of this RFPProposal Letter (Letter of Invitation)….

08.02.13

18 07.22.13 Looking for Metro "Metro standard drawing SS-003" as referred in referenced doc,"The Metro Seismic Criteria does not provide..., but Metro standard drawing SS-003presents a guideline for seismic earth pressure due to retained soil and due toadjoining building", where can this be found?

Support of Excavation drawings will be provided in a future amendment. 08.02.13


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19 07.24.13 I notice that this project has an estimate expenditure for DBE. However, mycompany is MBE only, not DBE. Does my company get qualified for participating thebidding process? We are manufacturing that specialize in machining precision metalparts. Do you require any manufacturing located in United States? Do we allow tosubcontract some work outside the United States?

MBE does not qualify for the DBE project, you need to apply the DBE certificationeither with Metro or any California DBE certifying agencies. Yes, if your firm is amanufacturing company, we require your manufacturing facility located in UnitedStates. You can subcontract some work outside the United States, but the work willnot be certified with your DBE certification.

08.21.13

20 07.24.13 Have the primes already selected their subs in preparing these designs or are weable to meet them as they are actually hiring us not Metro, correct?

The C1045 contract is a design build project delivery system therefore until design iscompleted by the design builder subcontracting opportunities may be identifiedthrough completion of the design/construction. Subcontractors are to contact thequalified proposers to inquire about possible and future opportunities.

08.23.13

21 07.24.13 Any raised deck construction type in the streets for this first segment? Please refer to Technical Requirement 01 53 05, Temporary Decking Systems,Paragraph 3.02 for information on raised decking.

08.23.13

22 07.24.13 Will BIM (building information model) be used for this project? Yes, please refer to General Requirement Section 01 31 28, Building InformationModel for BIM requirements.

08.23.13

23 07.24.13 The system component of the work was not discussed. Could you explain Metro'saspirations present and future in the area and any resolutions of the interface?

LACMTA request further clarification related to your question. Please provide moredetail.

08.02.13

24 07.24.13 Please detail the community outreach and public relations component of this RFP?Please indicate of or where this information is in the RFP.

Refer to Community Outreach Requirements are described in General Requirement01 35 95 - Public Information and Community Relations.

08.02.13

25 07.24.13 Does subconsultants (DBE's) need the same amount of insurance as the primes? Ifso, will Metro reimburse small businesses for the increase in standard insurancecosts?

The Prime Contractor is solely responsible to ensure that all Subcontractors areappropriately insured. Subcontractors shall be enrolled under the Contractor’s CCIPunder the same terms as the Contractor unless otherwise specified in the contractdocument. In the case of automobile liability insurance, Subcontractors mustmaintain no less than $1 million of coverage. In the event that a Subcontractor ispermissibly excluded from the CCIP, the Contractor is responsible for theestablishment of coverage limits for Subcontractors. The Contractor is fullyresponsible for any deficiencies resulting from insufficient coverage on the part of theSubcontractors. Metro will not reimburse small businesses for any increases in thecost of their insurance.

08.02.13

26 07.24.13 How does SBE participation fit in with the DBE program? The SBE and DBE programs are distinct separate programs. Because this projecthas Federal funds, only the DBE program applies. SBE participation pertains only toNon-Federally funded projects. Please reference Section 200 (page 3-14) of theInstructions to Bidders for more information regarding DBE participation.

08.02.13

27 07.24.13 Can prime D/B proposers utilize DBE firms to help/assist with GFE solicitation andidentification of RC-DBE firms interested in providing proposals for the work?

Yes proposers can; however, no DBE credit will be given for work performed bya DBE prior to contract award.

08.02.13

28 07.24.13 Is there an SBE goal for design? No, there is not a SBE goal for design. The design portion of the project has a DBEgoal. Please reference the Letter of Invitation (page 1-23) for more information .

08.02.13

29 07.29.13 The deadline for Questions/RFIs about the RFP is listed as 10 days prior to the duedate. However, Section IP-04 B. states that inquiries shall be received at least 21calendar days prior to the due date. Please clarify which is correct.

LACMTA will Amend Letter of Invitation Supplement (Construction) to reflect 21calendar days prior to due date. This change will be reflected in a futureamendment.

08.02.13


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30 07.29.13 Can the CADD files of the Project Definition and Reference drawings be madeavailable to the Bidders?

Please refer to the answer to question no. 17 above. 08.02.13

31 07.29.13 Is it LACMTA's intention to not compensate the Contractor for any interruptionsresulting from non-availability of funds? Can LACMTA provide current status onfunding availability for the Section 1 project?

Please clarify the first part of the question. LACMTA is on schedule to execute theFFGA for the Project in early 2014, and to obtain the TIFIA loan commitments prior toFFGA execution. Those actions will establish funding availability before contractaward and execution of the DB Contract.

08.16.13

32 07.29.13 The Schedule column for Milestone No. 3 refers to "...days after commencement ofsoldier pile installation for support of excavation and Flower Street Decking." Also,Systems Integration Testing is already included under Milestone No. 1. Pleaseclarify this Milestone.

Revisions will be provided by amendment to the RFP. 08.02.13

33 07.29.13 The Schedule column for Milestone No. 4 refers to "...days after commencement ofremoval of decking." It appears that this should say "…days after issuance of Noticeto Proceed." Please clarify.

Revisions will be provided by amendment to the RFP. 08.02.13

34 07.29.13 In GC-14, 14.1.2 refers to coordination with "other contractors". Please confirm thatthe Contractor is only to consider coordination with Work by other contractors thatare clearly foreseeable under this Contract, e.g., any third party contract interferencenot related to LACMTA work and not known to the Contractor at RFP stage cannotbe considered and would constitute a change.

In compliance with General Condition GC 14, Cooperation, Coordination andAccess, in its entirety, the Design Builder is responsible for cooperation, coordinationand access with other contractors during the period of performance of the contract.This obligation is not limited to contractors that are "clearly foreseeable”; it extends toany other contractor performing work during the DB Contract period.

08.22.13

35 07.29.13 The first sentence in IP-08 B. references "conforming proposals" and "alternateproposals" which can be submitted together as "complete separate offers".However, this article also requires that alternate proposals "must be equal to orbetter than the original requirements of the Contract Documents". In addition, anyalternative proposals accepted will be "evaluated in accordance with the evaluationcriteria in this RFP." Consequently, by definition an "alternate proposal" must also bea "conforming proposal". It's therefore not clear from the description what thedifference is between the two. We request clarification on what allowances may begranted by LACMTA for alternate proposals. Also, would alternate proposals requirea complete duplicate submittal of all Vol. I, II, and III documents or just the TechnicalApproach Submittal and Alternate Price Proposal, if applicable?

Alternate Proposals must be equal "must be equal to or better than the originalrequirements of the Contract Documents". During the design and review processalternate proposals that comply with all contract requirements may be considered.Yes, all alternate proposals are considered separate and distinct proposals mustcomply with all the RFP submittal requirements.

08.30.13

36 07.29.13 Page 3-48 (I. General Format) states that "Schedule plots shall be on 22 x 34 inch or24 x 36 inch paper,..." while page 3-59 (Volume II G.2.e) requires a hard copy of theCPM schedule on an 11 x 17 paper. Please clarify which is correct. Please alsoconfirm that schedules will be counted as part of the page count limitations, and thatoversize pages will count as 1 page.

Under Submittal Requirements, Volume II - Project management Submittal, sectionG2e on page 3-59 of the original RFP will be changed in a future Amendment to read22x34 inch or 24x36 inch sheets. The schedule submitted will not be included in the120 page limit count.

08.23.13

37 07.29.13 Article F. 1. refers to the Proposer's plan to "construct" stations, etc. Since thissubject is covered in depth in Vol. III - Technical Submittal and to make Article F. 1.consistent with F. 2., we respectfully suggest that this article be revised to refer to theProposer's plan to "manage the construction of the" stations, etc.

No change. 08.28.13


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38 07.29.13 Article B. 2. Structures (Excluding Bored and Cut and Cover Tunnels) would seem toreference only underground stations. However, underground stations are covered indetail in B. 5. Please clarify how Section B. 2. differs from B. 5.

Refer to Section 3 of the RFP Documents, Volume III Technical Approach Submittal,Section B

08.28.13

39 07.29.13 Article 8. d) does not appear to apply to the Westside Subway Extension Project.Please clarify.

Article 8 does apply to the Westside Subway Extension Project. 08.28.13

40 07.29.13 Are there existing Record Drawings available for the Purple Line at theWilshire/Western Station?

Wilshire/Western Record Drawings were provided on Disk 3b, folder labeled:“04.Metro Red Line As-Built Drawings”

08.02.13

41 07.29.13 The last sentence states that the Committee may revise evaluation scores based onthe…BAFO. Does this mean that the Proposer's BAFO will be evaluated separatelyfrom the original Proposal and that the final scoring will be changed to reflectchanges that are presented in the Project Management, Technical Approach, andPrice Proposal sections of the BAFO documents?

The Committee may revise evaluation scores based on the information contained inthe BAFO.

08.28.13

42 07.29.13 Under the column "Weight", it appears that the superscript 1/ after 25% does notapply, since all the sub-criteria referenced by this superscript are not equallyweighted.

Subscript to be modified in amendment. 08.28.13

43 07.29.13 Section 01 11 00 – Summary of Work, Article 1.04 B. 1. mentions Contracts C1048,C1055, and C1056 as advance utility relocation contracts for the three station areasat Wilshire/La Brea, Wilshire/Fairfax and Wilshire/La Cienega. Will information forthese contracts be made available?


44 07.29.13 This section stipulates the current allowable work hours. In Section 01 71 43 Table 1,LACMTA identifies "Metro Obtained Permits", including an "After Hours ConstructionPermit". Please advise the status of these Metro Obtained Permits and their validitythroughout the period from NTP to Final Completion.

To be clarified in a future amendment. 08.19.13

45 07.29.13 This section states in 1.05 E 3 f 2) that the City is performing a sewer capacityanalysis. Please advise if this analysis will be available prior to Proposal submittaldue date.

Available sewer capacity for Western, La Brea and Fairfax, and conditions fordischarge are stated in the Appendix to TR 01 35 35. Any available sewer capacityfor La Cienega will be clarified in a future Amendment.

08.19.13

46 07.29.13 This section states design life "in excess" of 100 year design life. Does "in excess"mean "equal to"?

Yes. A minimum of 100 years. 08.19.13

47 07.29.13 Should this read "…experience in the installation of..." instead of "…experience forthe manufacture of..."? Please clarify.



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The differences in the fan start and ramp up times used in the Fire-Life Safety BODTM and the CFD report for Fairfax will be clarified in a future amendment. The Fire-Life Safety Basis of Design (BOD) Technical Memorandum (03-27-2012) Section3.3.1 is based on the times used for the simulations in that report. These Simulationswere run allowing 90 seconds for the fans to reach full capacity after initiation. At thetime when the report was finalized, ways of improving the Time of Tenability duringthe first 4 minutes of the station fire incident were investigated, and the ramp up timewas reduced to 30 seconds. These original simulations were not rerun since thefaster ramp up time for the fans would improve conditions and at that point werealready acceptable. All CFD work going forward assumed fan activation via HeatDetector at 90 seconds, and 30 seconds for fans to reach full capacity (120 secondstotal). Table 4-1 in the BOD report was based on the initial assumptions for theproject and were based on the challenges of the Arson Based Fire.

Section 3.2 in the same report also mentions the new assumption of 90 seconds toactivate via heat detectors and 30 seconds to reach full capacity (120 seconds total).Section 01 11 01, Project Design Build Requirements will be revised to add the fanactivation and time to reach full capacity.

49 07.29.13 This section is related to deflection and distortion of the tunnel segmental lining atcross passage locations. Is LACMTA providing a quantification for deflection anddistortion?

No, Contractor to analyze tunnel based on construction methods and final tunnel andcross passage design.

08.19.13

50 07.29.13 The section states the requirement to coordinate with the Utility Owners to establishallowable settlement levels. In Item 3.02 A. 12. d of Section 31 71 19, LACMTA isproviding allowable settlements for utilities. If the requirements by the Utility Ownersare more stringent that LACMTA's levels does that constitute a change?

No. Design-Builder to verify allowable settlements prior with utility owners accordingto referenced Section 1.04 E.c.

10.02.13

51 07.29.13 If the Contractor wishes to propose steel fiber reinforcement, would this represent analternative to the Proposal?

Steel reinforcing bars are required for primary reinforcement in precast concretetunnel liners. Steel fiber may not be used as the primary reinforcement. Refer toTechnical Requirement 31 74 16, Precast Concrete Tunnel Lining, Paragraph 2.02B. 2

08.20.13

52 07.29.13 LACMTA uses a Medium Fire Growth for Gold Line Eastside Extension, PasadenaGold Line, Expo Line and for Crenshaw Base Option. Is it conceivable to use aMedium Fire Growth for this design and propose an alternate design resilient for thestipulated Arson Fire Growth?

No, design for the stipulated Arson Fire Growth. 08.20.13

53 07.29.13 What is the scope and schedule of the additional planned subsurface investigations? In summary, borings have been completed to revise three Geotechnical DataReports-GDR for Wilshire/La Brea will be updated for pump test data-GDR for Wilshire/Fairfax will be revised to add two borings at entrance locations-GDR for Reach two will be revised to data from three additional borings5 Borings are to be completed to provide additional data at lower elevations in Reach1

08.20.13

08.28.1310.09.13

48 07.29.13 Fire-Life Safety BOD TM (03-27-2012) Section 3.3.1 indicates fans start at 90seconds reaching full capacity at 180 seconds; Fire-Life Safety BOD TM (03-27-2012) Table 4-1 indicates fans start at 270 seconds reaching full capacity at 360seconds; CFD Report – Fairfax (Final) (11-20-2012) indicates fans start at 90seconds reaching full capacity at 120 seconds; Please clarify fan start and ramp uptimes used in CFD analysis.


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54 07.29.13 What is the scope and schedule for the additional investigations on the tiebackanchorages that impact the tail track tunnels west of Wilshire/La Cienega Station?

A single (plan) location of tiebacks is planned to be investigated using Geophysicaltechniques to locate anchor plates. If successful, additional locations may beinvestigated

08.20.13

55 07.29.13 There is an indication of artesian pressure at Wilshire/La Cienega Station. Designgroundwater is stated to be 10ft below ground surface, +/- 5 feet. Does this includethe artesian pressure?

Design groundwater levels do not need to be adjusted for additional pressures 08.23.13

56 07.29.13 Indicates a revised site response analysis will be performed for the Wilshire/FairfaxStation. Has this been performed? If so, please provide results.

Yes, the analysis is being revised for the Wilshire/Fairfax Station and will be providedin a future amendment.

08.23.13

57 07.29.13 The profile legend on K-119 shows historic high groundwater table which is notshown on drawings K-120 to K-127. Please clarify if the groundwater table shown ondrawings K-120 to K-127 is the baseline groundwater table.


58 07.29.13 At Station 563+00, the current high groundwater table is shown to be atapproximately Elevation 132 ft and 100 ft. Please clarify the baseline groundwatertable at this location and to the west of Station 563+00.


59 07.29.13 Is it possible to provide borings, CPTs, laboratory, and field test data digitally (softcopy/gINT files, Plates in GDR)?

Yes, to be provided in future amendment. 08.23.13

60 07.29.13 The Geotechnical Data Reports include summary tables of Pressuremeter tests. Canthe complete test results be provided?

Yes, to be provided in future amendment. 08.23.13

61 07.29.13 The Geotechnical Technical Memoranda (TMs) summarizes the results of siteresponse and hazard analyses. Is a more complete hazard analysis report available?

No additional reports are available, also please refer to answer to question no. 56above.

08.23.13

62 07.29.13 Numerous borehole logs have been provided that do not include surveyed locations.Can a complete list of all boreholes and their locations by station and offset andelevation be provided?

A list of borings and coordinates will be provided in a future amendment. Elevationsof prior borings should be estimated from topo maps and cross sections. Elevationsshown on some logs for prior investigations were relative to an assumed datum(refer to notes on logs).

08.30.13

63 07.29.13 Item A15: Entry in the description section suggests "three sets of DC surgearrestors", then the entry in the quantity column also states "three sets". Pleaseclarify if the required quantity is three sets x three sets, i.e. nine sets - or if there is amistake and the "three sets" should only be referred to once.

Section 34 01 03 has been deleted. Refer to the List “A” Spare Parts – TractionPower of Section 01 78 43 titled Spare Parts, Illustrated Parts Catalog, andReplacement Materials issued in Amendment #1. The required quantity is three sets.

08.28.13

64 07.29.13 Items B6. and B8. are both for anchor assemblies but contain different quantities.Please define the items more specifically and explain the difference between the two.

Section 34 01 03 has been deleted. Refer to the List “A” Spare Parts – Contact Railof Section 01 78 43 titled Spare Parts, Illustrated Parts Catalog, and ReplacementMaterials issued in Amendment #1 for quantities.

08.28.13

65 07.29.13 Center the loop in the platform so that there is one car length on either end of thewire loop as shown. Where can the presentation of arrangement be seen as it doesnot appear to be shown anywhere within the Technical Requirements document?

Per the Technical Requirement, from the center of the platform the loop shouldextend on either side a minimum one car length. A presentation an arrangement canbe found in the Reference Documents Volume 3b, Reference Drawings Volume 2,TC-013.

08.28.13


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66 07.29.13 Volume II states that "The Contractor shall replace all existing ATC Equipmentlocated at Wilshire/Western Station (…)" - this contradicts the statement in Volume IIIwhich reads "in order to provide through movements from Wilshire / Western Stationto the Westside Extension project alignment, the existing Train Control Equipmentwill be modified." - Please confirm that Volume II takes precedence.

Volume II takes precedence. and the text in Volume III will be revised in a futureAmendment.

10.04.1308.28.13

67 07.29.13 Please confirm where "Rail Operations Simulation Report" (Deliverable 5.2.7 A/B)can be found within the supplied documentation. If it has not been provided, couldthis document be provided?

Yes, will be provided in future amendment as reference document. 08.23.13

68 07.29.13 Document contains the following statement: "Metro has indicated that any works andequipment provisions associated with the existing facilities and at the Rail OperationControl (ROC) center will be done by the Metro". Please confirm whether the quotedstatement still holds and to what extent.

Any Work required at the existing Central Control Facility that houses the ROC toaccommodate the Purple Line Extension will be performed by Metro outside of thescope of work of Contract C1045. C1045 scope of work is to provide support toMetro during integration testing to ROC.

09.04.13

69 07.29.13 Volume III reads "The current SCADA system (…) is TRACS. Based on theinformation received from the metro, the existing TRACS system in ROC is notexpandable (…)" Please confirm if this statement still holds and whether it should beconsidered as having impact on Contractor's scope of work.

All of the necessary work to replace the current TRACS system to accommodate thePurple Line Extension will be performed by Metro outside of the scope of work ofContract C1045.

09.04.13

70 07.29.13 Volume II contains many references relating to consideration of impact of proposedworks on the Rail Operations Center (ROC). Could LACMTA provide indication aboutany passive or active provision for line expansion present at the ROC?

Any expansion (passive or active) required at the ROC to accommodate the PurpleLine Extension will be performed by Metro outside of the scope of work ContractC1045.

09.04.13

71 07.29.13 The statement lists the requirement for a train control designer to manufacture 50%of the Train Control System supplied under the contract, but earlier states that theTrain Control Designer may be train control equipment manufacturing firm or firms. Isa combination of a competent design consultant and an equipment manufactureralso acceptable?

Per the referenced Technical Requirements Section, the designated “Train ControlDesigner” for this Contract must meet all the requirements. One of the requirementsis that the designated “Train Control Designer” manufacture at least 50% of the TrainControl System equipment being supplied under this Contract. A competentconsultant may be part of the Contractor’s overall team but cannot fulfill the role ofthe Contractor’s designated “Train Control Designer” unless the consultant satisfiesthe stated manufacturing criteria.

09.04.13

72 07.29.13 LACMTA specified the use of BIM by design consultants to execute ACE, PE andAPE Design and Construction Project in this document. Is the final BIM Data of theAPE Phase available?


73 07.29.13 This section states BIM Electronic files shall be developed to include the featuresdescribed in Section 3.04 (As-Built Model) as designed. Can LACMTA clarify "thefeatures" described in Section 3.04?

“The features” refer to specific additional model attributes and discipline-specificproperties of BIM Electronic Files that are required to create the As-Built deliverableModel, as listed in detail in subsection 3.04.C.

09.19.13


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74 07.31.13 The Westside Transit partners requests your permission to collect three 5 gallonsamples of the soldier beam drill spoil currently being excavated at the future locationof the Fairfax/Wilshire station at the intersection of Wilshire and Ogden Avenue. Wewould like to obtain samples of the spoil to determine the appropriate soilconditioners to deal with the asphalt impregnated soils present in the tunnelalignment. We would like to collect the spoil from between 45’ to 60’ below groundsurface. We will provide the appropriate containers and tools to collect the samples.


75 08.02.13 Is this project only for Race Conscious DBE's, or can other DBE, WBE, SBEcompanies perform work functions and also receive DBE participation credit? Is therea separate goal for non-minority companies?

This project has a twenty percent (20%) Race Conscious DBE goal for Design and aseventeen percent (17%) Race Conscious DBE goal for Construction. Only RaceConscious DBE firm's participation is credited toward the Race Conscious DBEgoals. Participation by WBE and SBE firms are not credited toward the RaceConscious DBE goals. Participation by non-Minority women is counted towardMetro's Race Neutral goal. There is not a separate goal for non-minority companies.

08.21.19

76 08.02.13 On Page 7-9 of the Preliminary Engineering Report (Final), Deliverable No. 6.6.1.2.F(Draft Building and Adjacent Structure Protection Report,Cut‐and‐Cover Excavation, submitted October 31, 2011) ismentioned that it is summarized. Can Metro provide this full report?

Report addressing cut and cover excavations will be provided in a futureamendment.

08.19.13

77 08.02.13 Will Metro make available the latest CAD Standards to ensure proper set of projectfiles?

Metro's latest standards have been provided. If updated, the revised standards willbe provided to proposers.

08.19.13

78 08.02.13 Equipment access hatches up to street level are shown 12’ wide by 17’ long on theWilshire/Fairfax Station reference drawings [see Vol. IIIb, Dwg.: S-1218]. With notmuch effort it appears they could be replaced with equipment access hatches downto track level as we have track damper openings shown at large as 15’ wide X 17’long [see Vol. IIIb, Dwg.: S1214]. What is the reason for having these equipmenthatches up to street level when other equipment access hatches are provided overthe tracks below?

The floor access hatches located in Rooms 50 and 57 to track level as shown in thecontract drawings A-2111 and A-2114 (Wilshire/La Brea Station) are meant forremoval/replacement of ventilation and auxiliary power equipment only. Theequipment access hatch located in the corridor between the Traction Power Room#47, LADWP Switch Room #44, and Metering Switchgear Room #45 is required fora joint use of removing/replacing of Metro’s traction power equipment and LA/DWPequipment from the street. Track damper openings shall not be used forremoval/replacement of any type of mechanical or electrical equipment. Similararrangement shall also apply at Fairfax and La Cienega Stations.

08.19.13

79 08.02.13 Included in the proposal documents are copies of MTA approved criteria deviations,requested by P/B during their preparation of the 30% documents (see Volume II,Section 3, ‘Deviations to Metro Design Criteria’).

There is a deviation request [WSE-2013-007 “General Architectural Design CriteriaDeviations for WSE” (submitted 5/21/20130] listed but not yet approved. CanLACMTA provide a status update and a copy of the original deviation request.

The Deviation was provided in Amendment #1 08.19.13

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80 08.06.13Lab tests results from these boreholes are included in Table 4-3, but the boreholelogs are missing from Appendix A and the borehole locations are missing from Plate1. Please provide logs, locations, and ground elevations for boreholes:

A-66260 (1)A-66260 (2)A-71252 (1)A-71252 (2)A-71252 (3)A-71252 (4)A-71252 (5)A-71252 (6)

The missing information will be provided in a future amendment. Please refer tocross sections and topo maps for approximate elevations of prior borings. Elevationsshown on some logs for prior investigations (those not for C1045 contract) wererelative to an assumed datum (refer to note on these logs).

08.23.13

81 08.06.13Locations of these boreholes are presented in Plate 1, but the borehole logs aremissing from Appendix A. Please provide logs, and ground elevations for boreholes:

E-108AE-108BE-109AE-110AP-304OB-305E-110BOB-306E-110CG-315


82 08.06.13 The logs for these boreholes and CPTs are included in Appendix A and D, but do notinclude the ground elevations.Please provide ground elevations for boreholes:

A-79292 (1)A-79292 (2)C-110CB-101

Please refer to cross sections for approximate elevations of prior borings. Elevationsshown on some logs for prior investigations (those not for C1045 contract) wererelative to an assumed datum (refer to note on these logs). CPT ground elevationswill be provided in a future amendment.

08.23.13

83 08.06.13The logs for these boreholes included in Appendix A include ground elevations, butthe elevations do not agree with the expected elevations in the vicinity of the station.Please provide ground elevations for boreholes:

L89452.PBFB (1)L89452.PBFB (2)L89452.PBFB (3)L89452.AC (4)L89452.AC (5)

Please refer to cross sections and topo for approximate elevations of prior borings. Elevations shown on some logs for prior investigations (those not for C1045contract) were relative to an assumed datum (refer to note on these logs).

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84 08.06.13Table 3-2 summarizes the pressuremeter test results, but the pressuremeter testreports are necessary to evaluate the quality of the pressuremeter test curves.Please provide pressuremeter test reports performed at boreholes:

G-112G-309

To be provided in future amendment. 08.23.13

85 08.06.13 Logs of these CPTs are included in Appendix D, but the digitized tabulated data isrequired to make use of the test results for interpretation purposes.Please provide digital tabulated data for CPTs:

C-110CB-101


86 08.06.13 The stations presented in the logs for these boreholes in Appendix A do not agreewith the borehole stations inferred from Plate 1. Please provide stations forboreholes:

G-3G-4

Use Plate 1 locations for Borings. To be clarified in a future amended GDR. 08.23.13

87 08.06.13 Locations of these boreholes are presented in Plate 1, but the borehole logs aremissing from Appendix A. Please provide logs and ground elevations for boreholes:M A-78304 (4), M A-80041 (1)G-127, RC-17SV-6, A-68291-B (10)A-68291 (2), A-68291-B (8)A-68291-B (5), A-79181 (1)A-68291-B (4), A-68291-B (6)A-68291 (1), M A-69086-B (3)M A-69086-B (6), M A-69086-B (9)M A-69086-B (8), M A-79162 (2)M A-79162 (1), M A-79026 (2)M A-79026 (3), M A-79026 (1)G-8, E-123, OB-101, OB-102P-101 and M A-78304 (3)

The boring logs will be provided in a future amendment. Also, please refer to theanswer to question no. 83 above.

08.23.13

88 08.06.13 The logs for these CPTs are included in Appendix D, but do not include the groundelevations.Please provide ground elevations for boreholes:

C-112C-302C-303


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M A-68291 (3)M A-68291-B (11)M A-69086-B (1)M A-69086-B (4)M A-69086-B (5)M A-68291-B (7)M A-68291-B (9)M A-69086-B (2)M A-69086-B (7)M A-78304 (1)M A-78304 (2)


90 08.06.13 Section 3.1 and Plate 1 state that pressuremeter tests were performed at theseboreholes. However, the results are not included in GDR.Please provide pressuremeter test reports performed at boreholes:

G-128G-131


91 08.06.13 Logs of these CPTs are included in Appendix D, but the digitized tabulated data arerequired to make use of the test results for interpretation purposes.Please provide digital tabulated data for CPTs:

C-112C-303C-302


92 08.06.13 Locations of these boreholes and CPTs are presented in Plate 1, but the boreholelogs are missing from Appendix A and D. Please provide logs and ground elevationsfor boreholes:

C-111G-350AP-47MW-2DG-318G-319MW-1DM L90123.ADEFO (MW-1)M L90123.ADEFO (MW-3)M L90123.ADEFO (MW-1A)MW-3DP-48RC-16


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93 08.06.13 The logs for these boreholes and CPTs are included in Appendix A and D, but do notinclude the ground elevations.Please provide ground elevations for boreholes:

G-W2CB-103CB-104C-350



M A-67263 (1)M A-67263 (2)M A-67263 (3)M A-77144 (1)M A-77144 (2)M A-79069 (1A)M A-79069 (2A)M A-79069 (3A)M A-79069 (4A)M A-81018 (1B)M A-81018 (2B)M A-81018 (3B)M A-83353 (5)M A-83353 (6)


08.23.13

95 08.06.13Table 3-2 summarizes the pressuremeter test results, but the pressuremeter testreports are necessary to evaluate the quality of the pressuremeter test curves.Please provide pressuremeter test reports performed at boreholes:

G-121G-123G-312G-350G-351


96 08.06.13 Logs of these CPTs are included in Appendix D, but the digitized tabulated data arerequired to make use of the test results for interpretation purposes. Please providedigital tabulated data for CPTs:

C-111CB-103CB-104CB-350


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97 08.06.13Locations of these boreholes are presented in Plate 1, but the borehole logs aremissing from Appendix A. Please provide logs and ground elevations for boreholes:

P-32ACWDD 15AER-8


08.23.13

98 08.06.13 The logs for this CPT is included in Appendix D, but do not include the groundelevation.Please provide ground elevation for borehole:

C-101


99 08.06.13 The logs for these boreholes included in Appendix A include ground elevations, butthe elevations do not agree with the expected elevations in the vicinity of the station.Please provide ground elevations for boreholes:

M-62313 (1)M-62313 (3)A-73089 (3)A-73089 (6)A-73089 (10)


08.23.13

100 08.06.13Table 3-1 summarizes the pressuremeter test results, but the pressuremeter testreports are necessary to evaluate the quality of the pressuremeter test curves.Please provide pressuremeter test report performed at borehole:G-102


101 08.06.13 Log of this CPT is included in Appendix D, but the digitized tabulated data is requiredto make use of the test results for interpretation purposes. Please provide digitaltabulated data for CPT:C-101


102 08.06.13 The logs for these boreholes included in Appendix A include ground elevations, butthe elevations do not agree with the expected elevations in the vicinity of the station.Please provide ground elevations for boreholes:

M-62313 (1)M-62313 (2)A-73089 (3)A-73089 (6)A-73089 (10)


103 08.09.13 During the scheduled tour of the Fairfax Station test pit construction on July 24, 2013,we observed the drilling contractor applying a drying agent to the soldier beamdrilling spoil. Please identify the product being used and the manufacturer.

The product name is ZorbixTM manufactured by Diversified Minerals Inc. 08.23.13

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104 08.09.13 The original traction power simulation was conducted for the whole plannedextension between Wilshire/Western and Westwood/VA Hospital station. Pleaseconfirm the scope of the requested Traction Power simulation review. Is the bidderrequired to review and comment on the complete section only or is it necessary toconsider the Phase 1 extension as well? Or is the scope Phase 1 extension only?

The scope of the traction power simulation is limited to Section 1 only. 08.23.13

105 08.09.13 The original traction power simulation uses characteristics of a "refurbished train".There is no reference to a "refurbished train" within the technical requirements.Please confirm that rolling stock parameters included in the "Traction PowerSimulation and Analysis Report" (Deliverable No. 6.7.X) are valid for traction powersimulation purposes.

The rolling stock parameters included in the Traction Power Simulation and analysisreport are valid for Traction Power simulation purposes.

08.23.13

106 08.09.13 In order to investigate the best solution for the tail tracks, can LACMTA provide theexpected plan for operation of the trains, in particular any aspirations for trainstorage, cleaning, or joining and splitting of the trains to be carried out within the tailtracks?

The tail tracks are on the alignment of the future main line between Wilshire/LaCienega Station and Wilshire/Rodeo Station. The length is based on having storagefor a four car reserve or crippled train in addition to safe braking distance forplatforming trains. The space beyond the bumping post is for the ventilationequipment and a point of safety for workers in the event of a fire. There is noanticipation of cleaning trains or coupling or uncoupling trains.

08.23.13

107 08.09.13 In Appendix A Cost and Schedule Template on Page 01 29 76-0, it reads "ASchedule template is provided in XER format for Contractor to grasp minimumschedule structure requirements prior to bid schedule and all schedule submittalsidentified in the contract". We cannot find this template. Please clarify where canthis .XER file can be found.

Refer to Section 0129 76-0 Appendix A - Cost and Schedule Template for directionon how to create .XER format/template.

08.30.13

108 08.09.13 The specifications states "Minimum 12-inch thick single-pass gasketed pre-castconcrete segmental lining". If engineering calculations and design show a thicknessof less than 12-inch meets all design requirements, would this be acceptable to theLACMTA?

NO, the Contract minimum requirement is a 12-inch thick single-pass gasketed pre-cast concrete segmental tunnel lining

08.23.13

109 08.09.13 According to the GBR (Vol. II, Section 05), the zone of elevated gas conditionsextends from Wilshire Blvd. and Highland Ave to Wilshire Blvd. and Stanley Drive.This area includes all three stations – La Brea, Fairfax, and La Cienega. However,the Project Definition Drawings (Vol. II, Section 07) drawings SF-2510 to SF-2516only shows Fairfax and La Cienega stations. Is the gas venting system required in allthree stations?

Gas venting is required at Wilshire/Fairfax and Wilshire/La Cienega Stations.Wilshire/La Brea Station is outside the elevated gas zone. GBR Section 5 andgeologic profiles in GBR Appendix A will be revised in a future amendment

08.23.13

110 08.09.13 The details shown on gas venting system appears to be intended to be inaccordance with the passive system per City of Los Angeles Methane HazardMitigation Plans, prepared by LA DBS. Please confirm.

Please see Section 31 21 16.13 Sub-Article 2.01 Regulatory Requirements and Sub-Article 2.02 System Assembly. Where appropriate for the form of construction, suchas the paved areas at the entrance locations, the City of Los Angeles MethaneHazard Mitigation Plans have been implemented. Where not appropriate for the formof construction, such as the station boxes beneath the street an alternative approachhas been implemented.

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111 08.09.13 LA DBS requires a methane site investigation to be signed off using Form 1(Certificate of compliance for methane test data) which includes a Design MethaneConcentration and a Design Methane Pressure, together with a Methane DesignLevel (Levels I through V): was such a form prepared for the GDR for this project? Ifso, please provide.

A LADBS Form 1 “Certificate of Compliance for Methane Test Data” is not required. 09.12.13

112 08.09.13 LA DBS Mitigation Plans appear to be applied to buildings at and above grade; theydo not appear to address below ground structures. Under LA DBS Mitigation Plans,dewatering is required in order to keep groundwater at least 12 inches below thelowest horizontal pipe. At all three stations (La Brea, Fairfax, and La Cienega),groundwater level is 20 to 30 ft below ground level and the drawings show the lowesthorizontal pipe to be at least 80 ft below ground level. The drawings also refer to‘submerged trench drains’ which we assume are water-filled: Can we assume thatthe gas venting system shown on the drawings could be entirely filled with waterbelow groundwater level?

See Section 31 21 16.13 Sub-Article 2.02 System Assembly for the minimumrequirements of the gas venting system. LADBS Mitigation Plans are written forbuildings and hard paved areas and the Project Requirements are written to addressbelow ground structures. It can be assumed that the gas venting system shown onthe drawings can be entirely filled with water below groundwater level.

09.12.13

113 08.09.13 Can the design basis for the sizing, layout and spacing for the underslab and verticalriser systems shown on the drawings for La Cienega and Fairfax Stations beprovided?

The design basis is from the City of Los Angeles Methane mitigation measuresmodified for Metro’s underground facilities.

09.12.13

114 08.09.13 The sidewalk vent details show risers discharging into either a below grade boxcovered by a steel grating or a landscape buffer zone detail. There are scenarioswhere such systems cannot disperse methane: for example, if the steel grated box isfilled with accumulated soil or trash or if the landscape buffer zone is filled with rainor irrigation water. Who is responsible for maintaining these vents so that theyfunction properly?

During the Project the Contractor is responsible and on Project completion, LACMTA is responsible for maintaining the vents. Both details are similar to thoseused in the City of Los Angeles and are developed from the LADBS Mitigation Plans

09.12.13

115 08.09.13 Are alternative methane control systems, other than the gas venting system externalto the station structure shown on the drawings, allowed? If so, what is the processand level of detail required for alternative submittals?

Refer to Section 31 21 16.13 Sub-Article 2.02, System Assembly. The gas ventingsystem shown on the Project Definition Drawings are minimum requirements. Also,please refer to the answer to question no. 155 for instructions on Modifications andAlternative Proposals.

10.03.13

116 08.09.13 The definition drawings indicate a 2000 KW emergency generator at La Brea and LaCienega Stations, but there is not one shown for Fairfax. Please confirm that anemergency generator is not required at Fairfax.

A standby generator is not required at Wilshire/ Fairfax. 09.04.13

117 08.05.13 What is the latest estimate for the construction period of Phase 1 (Section 1) - - LaBrea, Fairfax and La Cienega Sations?

Please refer to Article V - Contract Term and Period of Performance for theestimated duration of the construction period for Section 1.

08.21.13

118 8.23.13 Milestone 3 refers to the commencement of piles at Flower Street:• No Flower street on this project. (Regional Connector)• If this does refer to one of the locations at this project, then there could have aconflict between milestones. Lets say the design for the SOE and utilities is approved9 months (270 days into the project.). Utility relocation for piles is 45 cal days. ThenMilestone 3 would complete on 270 + 45 + 2920 or 3235. This is after Milestone 1.

To be revised in future amendment. 08.29.13

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119 8.23.13 Milestone 4 states that demob is 3250 days AFTER removal of decking. The deckingis one of the last things to be done. Substantial completion is 3070 after NTP. Letssays decking comes out at day 2700. Then demobilization must complete by 2700 +3250 = 5950. 6950 / 365 = 16 years after NTP.


120 8.23.13 Please explain why alignment vertical profile adjustment is restricted to 5ft upwardand 30ft downward? Does the restriction apply to the top of rail elevations at eachstation?

General Requirement Section 01 11 01 Paragraph 2.20. J.1.a.3 will be revised in afuture amendment to remove the constraint on profile deviations in the vertical plane.The track alignment may be realigned from that shown so long as it remains within 5-feet from the Right-of-Way limits. As part of Project planning and design for energyconsumption (Refer to Section 35 63 Sustainability Plan), the track vertical profileshall be designed with a vertical profile sag between stations to minimize train energyconsumption during breaking and accelerating on approaching and leaving thestations respectively.

09.10.13

121 8.23.13 Will Metro entertain alternative technical concepts for the underground stationdesign?

No, Metro will not consider alternative technical concepts for underground stationdesign.

08.30.13

122 8.23.13 It is understood that Metro would entertain betterment to the station module approachto the ancillary spaces. Will Metro consider and accept betterment to the stationentrances, public areas, fared zones, boarding platforms, station shape and form,floor heights, etc., so long as the betterments meet Metro Rail Design Criteria? WillMetro consider anybetterments, even if they conform to all technical requirements, not responsive to theproposal solicitation?

Define “betterment(s)”. Metro would consider a “better design” that is compliant to allthe Project Definition Drawings, Technical Requirements, Metro Design Criteria,Metro Standard Drawings and all other mandatory Contract Documents. The “betterdesign” will need to be cost effective as lowest price is part of the proposalevaluation criteria. All “better designs” must conform to all technical requirementsand be responsive to the RFP solicitation.

08.30.13

123 8.23.13 Amendment 1 includes a design deviation approval of architectural directivedrawings. Does it imply that any design features that are not identical to the MetroDirective Drawings require deviation approval? To our understanding, the intents ofthe Metro Standard Drawings are mandatory, but the intents of the Metro DirectiveDrawings are not, except mandated contractually otherwise. Is our understandingcorrect?

Design features that are not identical to the Metro Directive Drawings DO NOTrequire deviation approval. Metro Standard Drawings are mandatory, but MetroDirective Drawings are not mandatory except if the information shown on the MetroDirective Drawing is a technical requirement elsewhere in the RFP.

08.30.13

124 8.23.13 Can Metro provide cadd files of all the geological profiles included in the GBR? Electronic files will be provided with the final GBR amendment. 09.19.13

125 8.23.13 A TBM arrival shaft is prescribed west of existing Wilshire/Western Station, inanticipation of TBM launching from Wilshire/La Brea Station eastward. However, wedon’see any prescription of an arrival shaft at the west end of the tail track. Pleaseexplain Metro’s position and intent about how to terminate bored tunnel thereof.

Please refer to Drawing G-2450 for the termination at tail tracks. This may requireportions of TBMs (shields) to remain in place, with other components salvaged thruthe tail tracks and Wilshire/La Cienega shaft excavation. A retrieval shaft at the westend of Section 1 was not contemplated at the time of the EIS/EIR and cannot becleared in time for Section 1.

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126 8.23.13 Will Metro consider and accept construction methods other than cut-and-cover orbored tunneling for stations, X-overs, and tail tracks? For example, the RegionalConnector project prescribes the use of SEM for X-over cavern construction.

Metro has anticipated Sequential Excavation Methods (SEM) for cross passages inthe GBR. Westside Subway Extension stations and crossovers, to be constructed insoft ground, may not be excavated using SEM. Tail Track excavation by tunnelingmethods other than pressurized face TBMs may be acceptable subject todemonstration of meeting project requirements, such as those in TechnicalRequirements Section 31 71 16 - Mined Cross Passages. Note that Cut and Covermethods are not acceptable for tail track construction.

09.19.13

127 8.23.13 Is the 1+5 bored tunnel ring configuration mandatory? No 09.04.13

128 8.23.13 What is Metro’s position on the migration of contaminated groundwater at the stationsites, where construction dewatering would induce such a movement should soliderpile with lagging wall system is deployed as the mean of stability of excavation?

Regarding the movement of the contaminated groundwater as a result of dewatering,Contractor is responsible for the treatment and disposal of contaminatedgroundwater that is discharged from a dewatering system or from the excavation.

11.01.13

129 8.23.13 A 4 (four) inch construction tolerance is shown on the bored tunnel typical section.Are we allowed to adjust the tolerance to fit our tunneling control?

Tolerances shown are maximum allowable. Tighter tolerances are acceptable topromote better tunnel build and reduce potential need for track adjustments

08.28.13

130 8.23.13 Does Metro’s HRT vehicle dynamic envelope consider end throw? We understand the term ‘end throw’ in the question to mean the train overhang(either mid-overhang or end-overhang) as the train travels through a curve. TheMetro Dynamic envelope does not take account of this. For these dimensions, referto Section 4 of the Metro Design Criteria, and in particular Figure 4.16. In addition,refer to Project Definition Document drawing Y-2005 (Sheet 233) which shows theoffset dimensions for the centerline of track from the centerline of tunnel for thecurves in the project alignment.

08.28.13

131 8.23.13 The information required in Vol. 2, Section D.1 is the same information thatProposers are to provide in Section B. Due to the page limitations on Vol 2 and toeliminate duplication ofinformation, we request that LACMTA remove this requirement from Section D andonly require Proposers to provide it in Section B.

No change will be made to the submittal sequirements. Proposals must comply withall RFP submittal requirements.

08.30.13

132 8.23.13 Please clarify what information the Proposer is to provide in Vol. 3, Section B.2"Structures" that is not already included in other sections of Volume 3


133 8.23.13 Exhibit A - Minimum Qualification of Key Personnel and Functions Note 2 a) and b)appear to be minimum requirements for the Design - Build Entity and not for KeyPersonnel. Please clarify.

Refer to Section 3 of the RFP Documents, Evaluation Criteria and Process, Exhibit AMinimum Qualification of Key Personnel and Functions

08.30.13

134 8.23.13 Are all of the mitigation measures strictly mandated as a part of the GeneralRequirements?

Mitigation measures have been certified and approved by both Metro and the FTAand are legally binding. If there are alternative methods to achieve the same degreeof mitigation, those would need to be evaluated and approved by Metro’sEnvironmental Compliance Department and the FTA.

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135 8.23.13 MRDC 4.2.11 stipulates turnouts at terminal stations shall be minimum No. 15. IsWilshire/La-Cienega Station considered a terminal station before the Purple Line isextended westward? Should the station be construed as a terminal station, hasMetro approved a design deviation for the crossover using No. 10 turnoutsimmediate east of the station?

Wilshire/La Cienega Station is not considered a terminal station. Wilshire/LaCienega is considered a temporary terminus and a design deviation to use No. 10turnouts are not required under this designation.

09.19.13

136 08.30.13 Paragraph J. 1. a. 3) states that “The track alignment may be realigned from thatshown so long as it remains within 5-feet from the Right-of-Way limits...”Please clarify if the 5-foot lateral position tolerance includes the option to have thelateral extents of permanent infrastructure to be up to 5 feet outside the Right-of-Waylimits or please confirm, in a diagram for the avoidance of uncertainty, therealignment tolerance with respect to the Right-of-Way.

Elements of the Guideway are not to be constructed outside of the ROW. Pleaseread Section 01 11 00 Summary of Work; Sub-Article 1.05 “The Project is to beconstructed within the permanent Right-of-Way and Temporary Easements that havebeen obtained for the Project, as shown on the Project Definition Drawings”. Alsorefer to Metro Design Criteria 4.1.5.1 Right-of-Way “for defining the width and depthof the ROW, necessary to fit the entire transit Guideway, including all its elements.

11.08.13

137 08.30.13 Under design-build requirements for installation, there's a specific item noting that araised decking concept has been approved for the Wilshire/Fairfax Station area.Please confirm if there's been any approval for the raised decking concept for theother two stations.

No approval has been obtained for Wilshire/La Brea or Wilshire/La Cienega raiseddecking.

09.05.13

138 08.30.13 Vertical curve reference PVI13 (Sta 575+98.39) of given length 300ft (Drawings C-031 & C-2021) appears to be consistent with a design speed of 45mph whenreviewed against Metro Rail Design Criteria Section 4.1.6.5. This design speed doesnot appear to be defined for this element. Please clarify the status of this verticalcurve with respect to the required speed.

The design speed is 45 mph. Also refer to design Deviation WSE-2013-001. 10.03.13

139 08.30.13 The RFP drawing E-0040 does not show a 34.5KV tunnel parallel feeder betweenthe existing Wilshire/Western TPSS and the new Wilshire/La Brea TPSS. Pleaseclarify or confirm that this feeder section is not required.

There are no 34.5 Kv trainway feeders between the existing Wilshire/WesternStation and the new Wilshire/La Brea Station.

10.02.13

140 08.30.13 The Geotechnical Design Memoranda, Section 4.6.5 refers to Metro StandardDrawing SS-003 for seismic earth pressures to be applied to both the shoring andpermanent wall design. However, Metro Standard Drawing SS-003 included in theRFP, Volume II, Section 4-Metro Standard Drawings, is labelled as “NOT USED”.Please clarify the status of Metro Standard Drawing SS-003 and the design approachfor seismic earth pressures.”

Please refer to the answer to question no. 18. (Support of Excavation drawings willbe provided in a future amendment)

09.10.13

141 08.30.13 Are CAD files available for Metro Rail Standard drawings? (specifically, StructuralStandard drawings Cut and Cover Underground Structures: SS-002 ConstructionStructures Loads and Design Criteria; SS-003 Construction Structures LateralPressures and Criteria; SS-004 Construction Structures, Tie-Back, Bracing,Excavation and Vertical Support Criteria).

CAD files are NOT available for Metro Rail Standard Drawings. 09.10.13

142 08.30.13 Replacement Page 1-4 of Amendment 1 does not appear to correspond correctly tothe existing Page 1-4. The first paragraph repeats the last paragraph of Page 1-3,and the last paragraph appears truncated.

These are not replacement pages but rather show the changes such as insertions inbold blue and/or deletions in strikethrough in red.

09.03.13

143 08.30.13 Replacement Page 2-145 of Amendment 1 does not appear to correspond correctlyto the existing Page 2-145. This affects subsequent Pages through 2-242


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144 08.30.13 Replacement Page 2-246 of Amendment 1 does not appear to correspond correctlyto the existing Page 2-246. This affects subsequent Pages through 2-258.


09.05.13

145 08.30.13 Replacement Page 3-52 of Amendment 1 does not appear to correspond correctly tothe existing Page 3-52. It appears to correspond to Page 3-51.


09.05.13

146 08.30.13 Replacement Page 3-52 adds the phrase, "…and the Illness and Injury PreventionPlan(s)." We find no requirement in the Volume II submittal requirements specifyingthe inclusion of such a plan. Please identify where this plan should be included.

Illness and Injury Prevention Plan(s) should be included with Safety submittal as perSP-21.H - Compliance with Laws.

09.18.13

147 09.04.13 EIR/EIS, page 4-160, Mitigation Measure VIB-2 - Use of a Low Impact Crossover,states "A low impact crossover, such as a movable point frog or a spring-loaded frog,will be used in the design of the Wilshire/La Brea No. 10 Double Crossover for theapartments at Site V16)". However, Project Definition Plan C-2111 shows the use ofresilient fasteners. Please clarify.

High compliance resilient rail fastener are to be used in place of the low impact frog.Design-Builder to confirm final design meets specified noise and vibration criteria.

10.03.13

148 09.04.13 Section 01 11 01 Project Design-Build Requirements, Page 8, clause E.1.a. states"Provide a minimum 12-inch thick singlepass double gasketed….". Please clarify ifthe proposer could optimize the segmental lining thickness to fit its final design.Please also clarify the minimum concrete cover of the segmental lining.

12 inches is the minimum requirement for segment thickness. 1 ½ inches isminimum clear cover on inside face and sides of segments. On the outside face(face in contact with the ground) a minimum clear cover of 2 inches is required.Technical requirements will be revised to clarify the cover requirements in a futureAmendment.

09.19.13

149 09.04.13 Section 01 11 01 Project Design-Build Requirements, Page 9, clause E.2.a. states"Elevated Gas zone: Design the precast segmental tunnel lining, with the provisionfor a 6-inch secondary lining……".Please clarify if the proposer can optimize thesecondary lining thickness to fit its final design. The same clause further states"...have the capability to be constructed within the pre-cast segmental tunnel lining,and while the subway system is in operation." Please clarify if one of the two tracksremains operation meets the stipulated condition.

Yes, the proposer may “optimize” secondary liner design for compatibility with FinalDesign while meeting minimum tunnel envelopes for Heavy Rail Vehicles. Should asecondary liner need to be installed after ROD, the work window given to theContractor would be from 10:00 PM to 3:00 AM Sunday through Thursday.

10.18.13

150 09.04.13 Section 01 11 01-17, Project Design-Build Requirements, clause 3.03 A.5.astipulates "Special excavation methods as defined in the GRB with no more than 6inch lifts are a project specific requirement within the Paleontological Zone……….".Since the 6 inch lifts are most likely to be executed by hand mining over weekend fullroad closure periods, it would be almost impossible to achieve a depth (about 6ft)sufficient for decking/supporting beam installation in any given weekend closure of53 hours (Friday midnight to Monday 5am), and restore surface traffic. Will Metroreconsider the lift restriction?

Due to street closure time constraints, 6 inch lifts will not be required for deck beaminstallation and utility relocation, up to a depth of 10 feet below the ground surface.Metro has assumed the use of raised decking in the design of the advance utilityrelocations. The raised deck installation reduces time of excavation in theWilshire/Fairfax area for deck beam excavation and potential disturbance ofpaleontological resources. This will be clarified in a future amendment.

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151 09.04.13 EIS/EIR, page 4-338,first paragraph, states "In areas where gas is present, such asthe Wilshire/Fairfax Station initial support for the station wall could require a lesspermeable wall systems such as slurry walls or secant pile walls". However, GBR,page 7-4, Section 7.3 Wilshire/Fairfax Station Excavation, third paragraph, states"The excavation is to be supported by means of soldier piles and shotcrete laggingwith an internal system of walers and struts". Please clarify. Further to the inquiryabove, should the less permeable wall system is required, will be the same systemrequired for the Wilshire/La-Cienega Station for the station is also located in elevatedgas zone.

The Contractor is to design based on ground conditions described in the GBR andGDRs and select means and methods to address those conditions. The shotcreteLagging statement will be clarified in a future amendment.

09.19.13

152 09.04.13 The information required in this Vol. 2, Section D.1 is the same information thatProposers are to provide in Section B of this Volume. Due to the page limitations onVol 2 and to eliminate duplication of information, we request that LACMTA removethis requirement from Section D and only require Proposers to provide it in Section B.

This is not a duplication; the Design-Builder/Proposer must comply with RFPrequirements.

09.18.13

153 09.04.13 Please clarify what information the Proposer is to provide in this Vol. 3, Section B.2"Structures" that is not already included in other sections of Volume 3.


154 09.04.13 "Note 2: a) and b)" appears to be minimum requirements for the Design - Build Entityand not for Key Personnel. Please clarify.

This is correct. These are minimum requirements for the Design-Builder/Proposer. 09.18.13

155 09.04.13 Metro’s responses to Q121 and Q122 appear contradictory to each other. Can Metroelaborate the exact meaning of Response to Q121? Is flat roof (in lieu of arch roof)prohibited?

Please refer to Instructions to Proposers, IP-08 for instructions on MODIFICATIONSAND ALTERNATIVE PROPOSALS. Alternative Proposals may be submitted, butwill only be considered if the Proposer also submits a proposal conforming to therequirements of the RFP”.With respect to station roofs, the arched roof shown on the Project DefinitionDrawings considers location of the pile corridor and the advanced utility locationsand provides a clear span for the stations. Station Designs with columns onplatforms will not be accepted. This will be clarified in a future amendment.

09.19.13

156 09.04.13 27 36 00 Telephone System indicate that telephones shall be VoIP but drawingsshow all analog phones. Please clarify.

The telephone system shown on drawing CN-2907 is VoIP. The analog telephonesets are shown to provide off-hook detection and line supervision via the SCADAsystem.

10.04.13

157 09.04.13 Item 4.07 Building & Adjacent Structure Protection Report Section 4.3 Protectionfrom Ground Movements Related to Open‐Cut Construction makes reference toadditional PE Reports, namely "Adv. PE 3.07.040 series of reports (3.07.040.1through 3.07.040.4)". Are these reports included as reference documents? If not canwe be provided with copies of these reports?

The report reference numbers provide were not correct, Building and AdjacentStructure Protection Report will be provided in a future amendment

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158 09.09.13 This section requires names of “...all subsidiaries,...” Please clarify as to whether therequirement pertains to parent companies’ subsidiaries or bidder/proposersubsidiaries.

Yes, certifications are required for all parent and subsidiary companies. Whiletechnically only the prime contractor is required to submit an ethics declaration, weprefer all subs do as well. However, in circumstances where only the prime submitsan ethics declaration, they are answering on behalf of their subs. Proposers toconduct due diligence when completing form. Yes, this requirement pertains toparent companies subsidiaries as well as bidder/proposer subsidiaries.

09.18.1310.09.1311.08.13

159 09.09.13 This states: "Public Telephone shall be provided by the local telephone company andwill not be part of the Metro Private telephone system". However, a specification forthe public telephone system is provided in Section 10 17 16 Public Telephones.Please confirm whether the installation of Public Telephones is included inContractor's scope of work.

The Telephone Company will install the actual phone only. The DB Contractorprovides the enclosure for the phone, and all the electrical, cables, wires, conduits,etc. Contractor to coordinate with Metro Please refer to Communication Drawing CN-2907 for Telephone System Block Diagram. Specifications and drawings will bemodified and included in the next Amendment.

10.02.13

160 09.09.13 This article states that: "The FACP shall transmit alarm/troublezones to the Metro'sprovided fire alarm workstation located in the rail operations control (ROC)." Pleaseconfirm whether this statement is to be read that the Metro will provide the ROCworkstation and the relevant contractor's scope.

Metro will provide the Fire Alarm Workstation at the ROC. 09.17.13

161 09.09.13 Item I. states: "This equipment includes a marker frequency generator that generatesthree frequencies to be applied to the appropriate markers as shown." This isfollowed by a list containing two frequencies. The Drawings also suggest that onlytwo frequencies are used. Please clarify which is correct.

Correct, only two frequencies (not three) as noted in the Technical RequirementSection and Referenced Drawings Vol2B TC-012 are needed. The TechnicalRequirement Section (34 42 13.83 2.03 I., 34 42 13.83-5) in question will be revisedin a future Amendment to read as follows “This equipment includes a markerfrequency generator that generates two frequencies to be applied to the appropriatemarkers as shown”.

09.13.13

162 09.09.13 These refer to the "Cable Plan In Contract Drawings" in regard to the system. Suchdrawings cannot be found among the drawings supplied in the RFP. Could thepreliminary design cabling plan be provided?

The Contractor is responsible for preparation of Cable Plan drawings during finaldesign. The Technical Requirement Section (34 42 16.16) in question will be revisedin a future Amendment to read as follows: “Per Cable Plan drawings prepared by theContractor”.

09.13.13

163 09.09.13 Articles 4.6.5 and 4.6.7 of the Technical Memorandum for Stations Section - 1 andArticle 5.6.4 B. (Page 5-76) of Metro Rail Design Criteria Section 5Structural/Geotechnical all refer to Standard Structural Drawings SS-002, SS-003,and SS-004 that provide design criteria for construction structures (shoring anddecking). In the package provided to us, these three drawings have been x'ed outwith the note "NOT USED" placed on them. Is LACMTA going to issue replacementdrawings for these three criteria drawings as implied by the references above?

Yes – Shoring criteria will be provided in a future amendment 09.12.13

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164 09.09.13 The drawing shows no TWC loops around Wilshire/Western Station, neither existingnor proposed. Please explain whether this is an omission of the existing equipment toavoid confusion and, if there are no loops at Wilshire/Western Station, are they to beinstalled by the Contractor?

Yes, the Contractor is responsible to furnish wayside portion of the TWC system(both loops and TC&C room equipment) per the Technical Requirement Sections 3442 13.19, 34 42 13.33, 34 42 13.79 among other sections included in the RFP. As forthe reference drawing in question (TC-401), it provides only a representation of theexisting wayside equipment layout at Wilshire/Western station. Note that the existinginfrastructure does not have any TWC equipment. However, Contractor isresponsible to field verify the existing conditions at Wilshire/Western beforeperforming final design.

09.19.13

165 09.09.13 The reference design shown only shows PSS markers for the main direction of trafficfor each track. The arrangement of the signaling devices and operational referencematerial suggests that bi-directional operation will be possible on both tracks andused in emergency situations. Please confirm that the provision of a PSS system forthe main direction only as shown on the reference drawings is sufficient.

It should be noted that reference drawings are for Information Only. Forarrangement of signaling devices, the Contractor is to comply with the TechnicalRequirements of the RFP. The ATC system shall permit following moves in bothnormal and reverse directions of travel on each track in accordance with theTechnical Requirements. However, when a train is operating against the normaldirection of travel of a particular track (also known as reverse direction) then the trainshall operate in MTO mode only with full ATP protection, including speed limittransmission and enforcement. In such reverse direction operation, the berthing oftrains will be performed manually by the train operator. Refer to TechnicalRequirement Sections 34 42 13.06, 34 42 13.19, 34 42 13.83 among other sectionsincluded in the RFP.

09.19.13

166 09.09.13 Drawing 408 on Track BL through La Cienega Station shows both the temporaryposition of the Programmed Station Stop (PSS) equipment for train arrival fromFairfax Station (designated **) and for the permanent condition for the full extensionfor train arrivals from Phase 2 extension. Is the Contractor expected to install PSSequipment for both conditions or just for Phase 1 extension? Similarly, formodifications at Wilshire/Western Station, is the Contractor expected to provide newequipment for PSS on Track BL or is repositioning of the existing equipmentsufficient?

It should be noted that reference drawings are for Information Only. For arrangementof signaling devices, the Contractor shall comply with the Technical Requirements ofthe RFP. At La Cienega Station, the Contractor is responsible to provide allequipment and circuitry necessary for the temporary terminal operations andprovisions (both equipment and circuitry provisions) for converting the temporaryterminal configuration to the final through station configuration. At Wilshire/WesternStation, however, Contractor is responsible to field verify the existing conditions atWilshire/Western before performing final design and provide new PSS equipment inorder to convert the temporary terminal configuration to a through stationconfiguration. Refer to Section 01 11 01 - Project Design-Build Requirements,subsection 2.02.L.2 – Provision for Future Construction, and Technical RequirementSections 34 42 13.19, 34 42 13.26, 34 42 13.33, 34 42 13.83 among other sectionsincluded in the RFP.

09.19.13

167 09.12.13 Drawing G-2401, Section A, shown tieback elevations do not match with the tiebacksketch in Vol 3b for Wilshire 8501 building. Please clarify.

Please refer to General Notes 2 and 3 on Project Definition Drawing G-2090. 10.11.13

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168 09.12.13 The Tunnel and Station Ventilation Report (Deliverable No. 6.6.4.E Rev 1) does notprovide a description for the function of the emergency ventilation concept for the tailtrack as shown on Drawing G-2450. The reversible ventilation fan shown woulddirect smoke into the platform during an emergency fire condition. Therefore weconsider the concept described as not workable. Please update the ventilationreport to describe the proposed tail track ventilation scheme.

The Tail Track Ventilation System is designed to work in conjunction with theStation/Tunnel Ventilation fans at the West end of the Wilshire/La Cienega station.Evacuation away from the incident train shall always be through the cross passageand up the non-incident track.Example, if the incident train is on BR Track, evacuation will be toward the crosspassage at the end of the tail track tunnel.- Track Dampers on the BL Track are closed.- Track Dampers on the BR Track are open.- Tail Track Auxiliary Fan (TAF) moves air thru the cross passage and up BR Track.- Emergency Ventilation Fans (EF) draw air through the Track Dampers on the BR

Track and exhaust to the surface.Evacuation to the station via the BR Track will operate in the reverse.

10.03.13

169 09.12.13 Will Metro allow an ATC (Alternative Technical Concept) process similar toCrenshaw/LAX Transit Corridor Project? Or will Metro allow, at a minimum, a PAPS(Pre-Proposal Alternate Proposal Submittal) process similar to the RegionalConnector Transit Corridor Project?


170 09.13.13 According to the GBR, the Paleo Zone at the Wilshire/Fairfax Station is“…associated with the asphalt impacted soils…” and “…does extend into soil notimpacted with asphalt.” According to Drawing K-125 in the GBR, this descriptionextends the entire depth of the station excavation. However, the GBR also says that“For baseline purposes, the ‘Paleo Zone’ is from the ground surface at ApproximateEl. 165 to the top of the marine sediments at El. 145 at the Wilshire/Fairfax stationexcavation site…” This sentence seems to conflict with Drawing K-125 which showsthe Asphalt Impacted Soil extending down past El. 80 under the Wilshire/FairfaxStation. Please confirm the depth of the special excavation requirements at theWilshire/Fairfax Station.

The Paleo Zone is associated with the Tar Sands, however, it does not extend to thefull depth of the Tar Sands. The GBR will be revised in a future amendment toclarify.

09.19.13

171 09.13.13 Metro Rail Design Criteria Section 06 Architectural Table 6.2 has specified minimumroom size requirements. Some of the room dimensions indicated on the ProjectDefinition Drawings are bigger or smaller than those stated in the Metrorequirements. If all equipment can fit in the plant room with adequate maintenanceand replacement access, please confirm if room dimensions can deviate from theMetro Rail Design Criteria.

Comply with Metro Rail Design Criteria Section 6, Table 6.2 for all minimum roomsize requirements except for those items listed in approved Deviation Requests WSE-2013-003 and WSE-2013-005, “Design Criteria Room Size Reduction for Clear SpanStations”.

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172 09.13.13 Referring to General Requirements 01 11 00, 1.02 B. 10. Equipment provided andinstalled by Third Parties, the equipment and incoming power cables andaccessories will be provided by LADWP and SCE, respectively. However, per Note 8on Dwg. TP-2051 and Note 5 on TP-2053, Contractor shall coordinate and providemetering equipment, switchgear and conduits with DWP and SCE.

Please clarify who provides and installs this equipment.

Drawing notes on drawings are correct and Section 01 11 00, 1.02B.10 will bemodified to clarify the following:

· DWP will provide and install watt-hour demand meter and incoming power cables.Contractor to provide and install Potential Transformers (PTs), Current Transformers(CTs), incoming metering switchgear and accessories per DWP electric servicerequirements (ESR).

· SCE will provide and install watt-hour demand meter, PTs, CTs and incomingpower cables. Contractor to provide and install incoming metering switchgears andaccessories per SCE electric service requirements (ESR).

10.23.13

173 09.13.13 Technical requirement 31 74 16, 2.02 F. 2. states: “interconnect the double gasketwith a crossbar located on each radial joint face.” Our experience with crossbars /crossgaskets has been with their location on the circumferential face to avoid rollingof the gasket when the segments are positioned. Please confirm if the radialrequirement is mandatory or would the LACMTA accept location of thecrossbars/crossgaskets on the circumferential face if similar compartmentalizationcan be achieved?

Radial location is not mandatory. Please refer to Drawing Y-2011. The TechnicalRequirement will be revised in a future amendment

09.13.13

174 09.13.13 Our understanding of Paragraph A. is that contractor JV members, which aresubsidiaries of parent companies (and use their parent companies’ projectexperience and execution capabilities), will not be required to provide a ParentGuaranty at Proposal submission, but may be required to provide one post-bid. Isthis correct?

Not required at Proposal Due Date although IP-13 (18) Metro has the discretion torequire a Parent Guaranty.

09.18.13

175 09.13.13 Amendment 1 lists a number of drawings as being revised or added. We cannot findthe following drawings in Amendment 1:

Sheet 135, Drawing DC-2002Sheet 136, Drawing DC-2004Sheet 138, Drawing DC-2025Sheet 143, Drawing DC-2407Sheet 144, Drawing DC-2408Sheet 248A, Drawing K-2001Sheet 248B, Drawing K-2002Sheet 248C, Drawing K-2003

Amendment #1 cover page will be revised to correct erroneous information in afuture amendment.

10.11.13

176 09.16.13 In reference to LACMTA’s response to Question No. 16 we would like to request bulksoil samples from the exploratory shaft excavation.

Proposers may request soil samples from the Exploratory Shaft construction site.Arrangements and pick up times must be coordinated with Eva Rodriguez at (213)922-1034 or via email at [email protected]. Metro does not warrant theaccuracy or representation of all conditions of the soil samples obtained from theEXCAVATION in the Wilshire/Fairfax station area or Tar Sands. Also, proposersreceiving samples assume the risk of interpretation of the samples obtained. Proposers are also reminded that the Contractor must properly dispose ofcontaminated soils at the appropriate disposal sites and comply with ContractDocument including but not limited to SP-21- Hazardous Substance Managementand GC-41 – Environmental Compliance.

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177 09.20.13 After reviewing the RFP for this project, I wanted to clarify if Metro will retain thepaleontologist for this project, or would it be one of the joint ventures? From the RFPit appears that it will be Metro. If it is Metro, will there be a separate opportunity toparticipate in the bidding for the paleontology/archPBology portion of the project?

Per General Requirements 01-35-92 section 1.01.B and 1.07.B the scope of work inquestion is performed by Metro (or its agents) not the Design Builder.

10.03.13

178 09.23.13 Is it possible to get a copy of the list of certified DBE firms that was included in theRFP in an excel format? This will assist us with our outreach efforts to the DBEcommunity on the project.

The list of certified DBE firms is only available in word format and it will be emailed toall planohoders.

10.04.13

179 09.23.13 We have compared the room sizes shown on Architectural plans with therequirements stipulated in Metro Rail Design Criteria and have found many roomsare smaller than that required by the Criteria. Please clarify if Metro intend to issuedesign deviations for those nonconforming rooms or if Metro expects that the finaldesigners shall rectify the deficiency.

Metro Rail Architectural Criteria Section 6, Table 6.2 room minimum dimensions arebased on a station with columns. Deviation Requests WSE-2013-003 for TractionPower Substation Room, and WSE-2013-005,Train Control and CommunicationsRoom, have been approved by Metro for room size reductions based on a clearspandesign. A Request for Deviation for other room reductions based on a clearspandesign is in process. The Deviation will be included in a future Amendment. Anyremaining rooms will need to comply to MRDC Section 6, Table 6.2 or the successfulContractor may request a Deviation, subject to Metro review and possible approval.

10.09.13

180 09.23.13 We could not find as-built information for 6226 Wilshire (about sta. 537+50). Pleaseprovide.

For 6226 Wilshire Design Information is only available from City of Los AngelesBuilding and Safety, and can be viewed inside their office. The reference filenumbers were provided in Reference Documents, Building information – Section 1Spreadsheet.

10.11.13

181 09.23.13 We could not find as-built information for 5900 Wilshire (about sta. 522+75). Pleaseprovide.

Available information on the building at 5900 Wilshire found in the ReferenceDocuments (file numbers). The Los Angeles Department of Building and Safetymay have additional as-design information available but access to these files arerestricted. Metro is seeking approval from the Owner for viewing these files

10.18.13

182 09.23.13 It appears that Drawing G-2303, Section A, is not shown to reflect the most adversetie-back location for the 6500 Wilshire subsurface parking garage, and the tunnel willbe much closer to the existing tie-backs. Please clarify.

The sections indicated are based on design drawings and my not reflect as-constructed conditions. Please refer to General Notes 2 and 3 on Project DefinitionDrawing G-2090.

10.31.13

183 09.27.13 Subsequent to Metro's reply to Q123, we wish to further clarify the following: A-Seriesdrawings do not show the distance between Concourse Floor elevation and thePlatform Floor elevation while S-Series drawings, S-1133, S-1134, etc.indicate 15'-3". Metro Directive Drawings, AD-002, AD-003, AD-005, etc. indicate theminimum distance is 16'-3". Please clarify which one the proposer has to conform to.

Conform to Metro Rail Design Criteria as modified by approved design deviations,Metro Standard Drawings, and applicable A-series drawings for required minimumvertical clearances at platform and concourse areas. The minimum distance of 16’-3”shown on Metro Directive Drawings is not a specific requirement; however theminimum distance of 10’-5” from the platform finish floor to the underside of theedgelight and cantilever arm support is required, as indicated on A-series drawings.

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184 09.27.13 Subsequent to Metro's reply to Q151, we felt that Metro has not responded to thepart of the question regarding the statement in the EIS/EIR. Does Metro imply thatthemitigation measures prescribed in the EIS/EIR can be ignored?

Clarification of excavation support requirements will be provided in next Amendment. 11.08.13

185 09.27.13 Per the "Corrosion control measures technical memorandum (Final)", the corrosionindex is severe. Are there any Metro recommendations related to reconstruction offacilities such as storm drain, sewers, water and other utilities?

Yes, please refer to the Geotechnical Data Reports. Preliminary Recommendationsfor corrosion mitigation are included in the Appendices.

10.31.13

186 09.27.13 What are the preliminary design recommendations regarding the cross passagessumps? Are the future pumps at these locations collecting only the waste water forthe tunnel areas, or the combination tunnel plus station?

The sumps at the cross passages shall have the same considerations as those inthe station. They will collect any water that infiltrates the tunnels (and stations) aswell as any water discharged from the fire standpipe system during a fire event. TheCross passage sump system shall also collect the water that is not collected in thestation sumps and continues to the tunnel low point. Also refer to the answer toquestion no. 11 above.

10.04.13

Is ALL tar contaminated soil required to go to a class II landfill or (dependent on testresults) is it allowable to send a portion of the material to a class III facility?-Per Environmental Procedures for Contaminated and Hazardous Materials, 01 3543-6: All tar contaminated soil shall be disposed of in a Class II landfill. However, thisconflicts with the EDR (pages 93 and 94 of 102), where it states the following: 91% ofthe tar impacted soils from the Wilshire/Fairfax Station were initially considered to beNon-RCRA Hazardous Waste (California Hazardous Waste) per CaliforniaRegulations, but later classified to be non-hazardous for disposal purposes whenthey passed the Bioassay Fish Kill Test. However, due to the presence of tar in thesoil, most of the excavated materials may require disposal at a Class II Landfill facilitysuch as McKittrick Landfill (located west of Bakersfield). It is anticipated, that aportion of the excavated material from this location can also be disposed off at aClass III Landfill facility, provided favorable test results from Bioassay test areestablished during station excavation

operations and no excessive tar balls are encountered. If the Bioas say results areunfavorable then the excavated material will require disposal to a Class II Landfillfacility such as McKittrick Landfill.

188 09.27.13 Members of our team have recently completed Metro Exhibit C Experience /Performance Questionnaire forms that were submitted for another recent Metrodesign-build proposal. Will Metro accept these same forms for the WestsideExtension proposal?

No, DB/Proposer must comply with the RFP requirements. 10.04.13

189 09.27.13 Amendment 1 adds an Illness and Injury Prevention Plan to the exclusion of the pagecount in Volume 2 - Project Management Submittal, however, the plan is not addedinto the submittal requirements. Will Metro be issuing revised submittal requirementsbased on these new additions? Please clarify.

RFP Section 3, Vol II Project Management Submittal requires the Illness and InjuryPrevention Plan(s) to be submitted as a submittal. The Health and Safety Section 0135 23 Work Site Safety Requirements requires a Project Specific Illness and InjuryPrevention Plan(s) to be submitted after award.

10.04.13

The tar will likely be non-hazardous based on the bioassay test that was alreadyconducted. However, if the soil has high VOCs, even if it is non-hazardous, it canonly go to specific facilities, such as Thermal Remediation Solutions facilities. If soilhas low VOCs and is non-hazardous, then it can go in to a class III facility that canthat accepts that level of TPH.

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190 09.27.13 The RFQ did not require a Design Quality Manager to be submitted in the SOQ.Exhibit A - Minimum Qualifications of Key Personnel and Functions in the RFP showsthe minimum requirements that this position needs to meet. Will Metro be requiringthe submission of a Design Quality Manager in addition to those resumes submittedin the SOQ? Please Clarify.

191 09.27.13 Will Metro be revising the Form 3’s for Design and Construction to include changesmade to columns C-G on these forms as was done for the Regional Connectorprocurement?

To be revised in future amendment. 10.04.13

192 09.27.13 Section 01 11 00 - 9, paragraph 1.04.B.1 states: "Prior to Contractor access to astation or shaft location, Metro will have relocated utilities inclusive of;telecommunications, electrical power, gas, sewer and water mains that run parallelto, and within the planned Pile Corridor." This statement omits "storm drain",presumably on purpose. However, the Contractor Utility Responsibility Matrixprovided in section 01 31 31 states that the 1045 contractor will only need tosuspend/protect the storm drains. Additionally, the project definition drawings call outthat the 1045 contractor is to relocate the storm drains. (See PDD Sheet 161 for anexample at La Brea Station). Please clarify who is responsible for storm drainrelocations.

To be clarified in next amendment. 10.31.13

193 09.27.13 The La Brea Station 1048 Advanced Utility Contract drawings provided inamendment 1 show a 36” HDPE sanitary sewer (SS). See sheet 082, cross section2. This SS is not shown on any of the project definition drawings in the 1045 RFPpackage at La Brea Station. It appears this 36” SS will remain in place and requiredto be hung by the DB Contractor on the 1045 contract, please confirm.


194 09.27.13 Section 3.03 on page 12 of 01 31 31 states that "The Contractor is responsible forthe design and construction of storm drain and sanitary sewer relocations...". This isin conflict with both the Responsibility Matrix in this same section, and also the scopeof work document, specifically section 01 11 00-9, paragraph B.1 which states that allsewer lines will be relocated ahead of time by other contracts. Please confirm thatthe contractor is not responsible for sanitary sewer relocations.


195 09.27.13 Sheet 161 of the project definition drawings shows an 18" sanitary sewer that is to berelocated by the DB contractor at La Brea Station. Upon reviewing the La BreaStation advanced utility contract documents, it appears the 1048 contractor is beingdirected to relocate this sewer line. Please clarify who will be relocating this sewerline.


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196 09.27.13 It is not clear what is Mandatory in the context of GC Para 44. For instance, reading01 11 01 Project D/B Requirement Para 2.02C.1.a. it remains unclear what portion, ifany, Metro considers Mandatory. Advise if any words such as 'shall', 'will', 'are fixedas a Project Specific Requirement', Project Specific Requirements' are equivalent toMandatory. Q&A 123 may have further confused items as it defined those items inthe Directive Drawings and shown in the Technical Requirementsare now mandatory.

Words such as “shall” or “will” or phrases such as “are fixed as a Project SpecificRequirement” indicate that the item referenced is a requirement. As a general rule,the particular requirement referenced sets forth the minimum technical and/orperformance characteristics of the Work that must be met; however, in some casesthe particular requirement referenced must be met exactly, for uniformity purposes.All RFP requirements are “mandatory” as that term appears to be used in thequestion. GC- 44 will be clarified in a future amendment.

10.09.13

197 09.27.13 Section 01 35 63 Para 1.01.C states compliance is required for both 'Mandatorysustainability measures as well as voluntary sustainability requirements'.This conflicts with the same Section, Para 3.01.A that states 'The Sustainability goalsfor the Project, as a minimum, are to efficiently implement the mandatorysustainability measures as listed in the Sustainability Measures Checklist from theCurrent Edition of California Code of Regulations (CCR), CALGreen, Part 11 of Title24, Please clarify if only 'mandatory' or both 'mandatory and voluntary' items arerequired. If voluntary is also a requirement, confirm which Tier (Tier 1 or 2).

These paragraphs are not in conflict. Contractor is to comply with 2013 CalGreenrequirements through the minimum implementation of the mandatory sustainabilitymeasures listed therein. If Contractor chooses to implemented voluntary measures,to the fullest extent feasible, Contractor to meet Tier 1 requirements but encouragedto meet Tier 2 requirements. These requirements are, however, superseded byMetro sustainability and environmental related policy requirements, as applicable. Please refer to Volume IV "Other Contract Documents" or go towww.metro.net/ecsd for copies of Metro's sustainability and environmental policy andplans.

10.08.13

198 09.27.13 MRDC 2.3.2.2 indicates the ventilation system shall be designed meeting certainperformance criteria when the 'most critical fan will be assumed out of service'. Oneperformance criteria for HRT is a FHRR of 86.5MBtu. The PE Tunnel and StationVentilation Report, para 4.3.7 'Performance Criteria' states the 'one fan out' appliesonly to a single car fire (FHRR of 43.6MBtu). Is a deviation report expected forthe MRDC 2.3.2.2? NOTE: MRDC in 8.1.4.D does indicate the 'one fan out of servicefor one car fire'.

The MRDC (Mechanical 8.1.4.D) and PE Tunnel and Station Ventilation Report weremodified as stated in the “Fire Life Safety Basis of Design” report (03-27-2012),paragraph 1.1 Design Fire Properties. This change was agreed upon by the FLSCfor this project since the stations have fire sprinkler systems that will prevent thespread of the fire from one car to the next. Changes to the criteria are reflected in theMechanical Criteria (8.1.4.D). Section 01 11 01, Project Design Build Requirementswill be revised to include a single car fire with the most critical fan out of serviceduring a station fire. The Metro Fire Life Safety Committee will modify MRDC 2.3.2.2to reflect “one fan out with a single car fire with FHRR of 43.6MBtu”, as is currentlystated in the MRDC (Mechanical 8.1.4.D), and the PE Tunnel and Station VentilationReport and the Fire Life Safety Basis of Design Report of 03-27-2012 as part of theirnext update to the FLS Criteria.

10.11.13

199 09.27.13 Spec section 14 31 00 Escalators (warranty starts at Substantial Completion) seemsto conflict with GC-23 Warranty (warranty starts at Final Completion, or 12 monthsafter SC). Thus, Escalator warranties could expire 12 months prior to the Project'sother standard warranties. Confirm if the Escalator spec is an exception and theconflict is not to be reconciled with Art I Precedence. Also, GC 23.2.1 states:'Subcontractor’s, manufacturer’s or Supplier’s Warranty Periods shall be for thelonger of the above stated Warranty Period or the Warranty Period specified in theparticular Warranty'. To what does 'particular warranty' refer? The manufacturer'sstandard commercial warranty? A Technical Requirement special warrantyrequirerment? Something else?

The Escalator and Elevator Warranties are an exception to GC-23 and will start atSubstantial Completion. At Substantial Completion the 1 year Warranty as well asthe 1 year Preventive Maintenance period will commence. The “particular warranty”refers to the specific warranty that is provided by the subcontractor, manufacturer, orsupplier. So the warranty period for these warranties will be the longer of the periodset forth in GC-23 or the period set forth in the subcontractor’s, manufacturer’s, orsupplier’s warranty. If escalator and elevator supplier warranty in in excess of the 1year, the longer warranty will apply as per GC-23.

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200 09.27.13 It is not clear by reading the paragraphs dedicated to the Integrated Interior Glass'Tile/Panels' if the design product supplied to the contractor for installation will be afinished assembly (tiles adhered to a backing of an approximate overall size) orindividual artist tiles to be installed thin set (according to Section 09 30 00 'Floor andTile') in the field. Please elaborate. If the design product is to be a panel, pleaseestimate approx size of the panels.

Design product to be supplied to the contractor for installation will be finished panels.Each panel will measure 48” x 120

10.02.13

201 09.27.13 In item 46 of the Schedule Of Quantities And Prices Form (Schedule-A) we need tosubmit a unit price for incremental costs associated with contaminated soils up to500,000 Tons. In item 10.07 of the Schedule Of Quantities And Prices Form(Schedule-C) we need to submit a unit price for incremental costs associated withcontaminated materials over 625,000 Tons. There appears to be a gap of125,000 Tons of contaminated material that the contractor would not get paid for.Please revise.

The Schedule of Quantities and Prices will be clarified in the next Amendment. 11.08.13

202 09.27.13 Specification 31 71 19 Part 2.03 A.7 indicates, Use EPB TBM or slurry TBM capableof controlling face pressure to within +/- two psi of the desired pressure at all times.Typically Slurry TBMs are able to achieve this level of control, whereas EPB pressurecontrol ranges are +/- 7.25 psi (0.5 bar). Please clarify controlled face pressureranges for both Slurry and EPB TBMs.

Referenced Specification Section has been revised in Amendment 3: +/- 5 psi forEPB.

10.18.13

203 10.02.13 SP-07 States that: "LACMTA will provide Contractor with one electronic set of allContract Documents in PDF as listed in the following table." The table lists theAgreements between LACMTA and The City of Los Angeles, County of Los Angeles,and The City of Beverly Hills. However, we are only in receipt of the agreement withThe City of Los Angeles. Are there copies available of the agreements with theCounty of Los Angeles and The City of Beverly Hills?

204 10.02.13 Section B. 1. refers to a narrative description of the approach to work items a)through f) described as "Civil Works". Section B. 8. d) requires a narrative describingthe "...approach to coordinating the civil design with the systems elements." Wewould like to reply accurately to this section, but it is not clear how "civil design" isdefined and consequently, how "civil design" and "system elements" would thereforeintersect and what coordination is to be described. It is also not clear how this isrelated to the “multiple interfaces involved in the design and construction of theProject” in the second sentence of B. 8. d). In order to accurately respond to thisSection, we respectfully request clarification on the “civil design” that is referred to inSection B. 8. d) and clarification of the specific subject being referenced in thesecond sentence.

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205 10.02.13 Section 01 11 01, 3.03 A. 5. b. states that a raised decking concept has beenapproved by the City of Los Angeles (DOT) for Wilshire/Fairfax Station area and isavailable upon request. IFB No. C1055 also indicates a deck structure raised aboveexisting grade. However, if this occurs, Contract C1045 will encounter difficultieswith grading to match the side streets, problems with handicap access, a potentialnecessity of stairs at bus stops, and other potential complications that won’t becomeknown until after construction has begun. Can the work under IFB C1055 be donesuch that the C1045 temporary decking at the Fairfax Station can be installed atstreet elevation?

206 10.02.13 Can this manhole be moved closer to the sidewalk and rotated on the south side sothe depth will not interfere with the top of the station? This will allow placement of themanhole between the deck beams. The existing electrical line may be in conflict but itcan be moved so this manhole can be moved.

207 10.02.13 Can LACMTA provide design elevations for the bottom of the four proposed electricalvaults within the station excavation footprint?

208 10.02.13 Advanced Utility Relocations Contract No. C1055, 12H5059 Sheets 2 of 5 and 4 of 5,shows electrical manholes and Vaults VL 6100, MH 6050, VL 6040, and VL 6012installed with the longest dimension longitudinal to the station. With the vaults andmanholes referenced above having dimensions of 9’-4” x 17’-6” x 12' 4" as shown onSheet U-379, there is a strong potential for the deck beams to conflict with thestructures. Would it be possible to turn the structures 90 degrees so that the longestsection of structures are perpendicular to the station and re-orient the duct banksaccordingly? This would eliminate the potential conflict with deck beam installation.The same condition would be a potential issue to consider for all stations.

209 10.02.13 Advanced Utility Relocations Contract No. C1055, 12H5059 Sheet 1 of 5 shows 30"to 42” minimum cover of electrical conduits, which may pose a potential problemwhile installing the temporary decking for the stations, since the utility cross sections(Sheets U-415 to 422 and UW 402) show the bottom of the beams for the stationdecking approximately 5’ below the original grade. We would need clearance toexcavate due to the crown. To eliminate potential conflicts with the electrical ductbanks, we suggest a minimum cover of 60” for all electrical duct banks that arerelocated as part of advanced contracts.

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210 The Standard Operating Procedures for public outreach, stakeholdercommunications and construction impact mitigation are as follows:

· DB hires 1 full time Public Information Coordination to serve as the counterpart ofthe Metro Construction Relations Officer. This person is responsible for ensuringtimely, accurate communications to Construction Relations relative to constructionschedule, impacts and mitigations and is on call 24/7 to respond to projectemergencies.

· Construction Notices are approved, translated and disseminated a minimum of 72hours prior to the commencement of any work in the public right of way, on Metro’sprivate property where work will take place for extended periods of time and activitiesthat may have some sort of public impact.

· Renderings are created in high resolution, topographically correct electronicrenderings that depict final configuration of street lanes, landscaping and lighting.

· Maps and Construction Notices are created using Metro’s style guide

· Field Reports are evaluated and resolved within 90 days.

• Street/lane closures are provided twice daily to Construction Relations for thatevening and next morning’s commutes.

Following these SOPs will ensure we have an informed, prepared communitythrough the construction phase. These SOPs will be included in a futureAmendment.

211 10.02.13 As referenced in Section 01 35 95, Part 1.07, please define full-time person? Is thecontractor required to hire the PIC on its staff or can the full-time person be asubcontractor?

The full-time person can be a direct hire on the Contractor’s staff or be employed asa subcontracted consultant. This is a full-time position. If the full-time person is asubcontracted consultant, the person is to be fully integrated into the Contractor’sproject management structure such that they will be able liaise successfully betweenthe Contractor’s team and Metro Construction Relations.

10.04.13

212 10.02.13 In the RFP, Section E, List of Certified Firms, there is no list of certified communityoutreach firms. Can you provide the list of communications firms that are certified forthis project and the NAICS codes required?

The List of Certified Community Outreach firms will be included in the nextamendment. The NAICS code codes to be used is are 541611 and 541820.

10.18.13

10.18.1310.02.13 Section 01 35 95, Part 1.01, B mentions Construction Relations’ Standard OperatingProcedures (SOP). Can you provide a copy of the SOPs or direct us to where wemight obtain a copy? Additionally, can we get access to the environmentalcompliances also referenced in this section?

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213 10.07.13 Are all the relocated utilities named hereon upsized per the governing agenciesrecommendations? For Wilshire/La Brea Station:1) Existing 18" concrete SS (COLA, between Detroit St. & La Brea Ave.), upsized toa 20" HDPE SS.2) Existing 24" VCP SS (COLA, between La Brea & Sycamore Ave.), upsized to a26" HDPE SS.3) Existing 33" VCP SS (COLA, between Orange Dr. & Sycamore Ave.), upsized to a36" HDPE SS.4) Existing 36" VCP SS (COLA, on Sycamore Ave.), upsized to a 42"/48"HDPE SS.5) Existing 42" RCP storm drain (COLA, crossing Wilshire Blvd.), upsized to a 60"RCP SD.For Wilshire/La Cienega Station:1) Existing 30"/33" RCP storm drain (COBH, from Gale Dr. to La Cienega Blvd.),upsized to a 60" RCP.

Proposed sections for temporary relocations are equivalent sections that will matchthe existing capacity. These are not upsized sections, DB to finalize and coordinaterelocation design with utility owners. Per Metro design criteria, permanent relocationsrequire to restore facilities to match the capacity of the original facility.

10.18.13

214 10.07.13 Reference drawing U-426, shows existing 138 KW DWPPS (E) line profile. Per allthe utilities plans the line is shown as a supported in place, but ref.dwg. U-427 showsthe same line as 138 KW DWPPS relocated line; Please clarify if this linewill be supported in place or a relocated utility.

Existing 138 KW DWPPS (E) line is to be protected and supported in place. 10.18.13

215 10.07.13 Previous versions of AQMD Rule 1166 allowed exemptions for excavation andhandling of soils with regard to VOC emissions occurring from natural sources. Themost current version of this rule has removed the exemptions for soil which iscontaminated through natural seepage of VOC from oil and gas wells and othernatural sources. Would a variance or amendment be allowed to the current Rule1166? If not, would Metro consider a provisional sum item to comply with Rule 1166with regard to natural occurring sources?

216 10.14.13 What is the tolerance on Cab Signal Code Rates? - Section 34 42 13.49 - AUDIOFREQUENCY TRACK CIRCUITS, 45.2.4 2.05 Cab Signal Commands states:"Design track module to provide the following cab signal modulated code rates. Theduty cycle for each modulation rate shall be 50 percent plus/minus one percent." Notolerance for Rate provided.

Paragraph 2.05 of the referenced specification section provides the tolerance levels.For the carrier frequency, refer to paragraph A. For each frequency associated witheach speed command, refer to Table 2.

10.23.13

217 10.14.13 Are Program Station Stop markers commercially available for this application andcan the ordering information for the existing PSS markers be provided (ref. 55Section 34 42 13.83 PROGRAM STATION STOP)?

To our knowledge Program Station Stops are not commercially available. As such,the “Program Station Stop Manual” will be provided for the Contractor’s use to designthe same product. This will be issued in future amendment as an attachment toSection 34 42 13.83.

10.23.13

218 10.14.13 TC&C Room Rack Seismic Testing: Is any testing is required to demonstratecompliance of the Equipment Racks/Mounting comply with the codes called out inthe Title 24 CCR and the Los Angeles Building Code (Ref.34 42 13.56 47.2.2 2.02) ?

Design and installation of all ATC equipment on structural components must be ableto resist and withstand earthquake regulations set forth in title 24, CAC and City ofLos Angeles Building Code for essential hospital facilities within Seismic HazardZone 4. Contractor to demonstrate compliance by analysis, and/or by manufacturer’scertification, testing, and/or by inspection. The Contractor shall select the method(s)to demonstrate compliance.

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219 10.14.13 Is seismic testing of switch machine layouts required per Title 24, CAC and City ofLos Angeles Building Code for essential hospital facilities within Seismic HazardZone 4 per SECTION 39.2.9 2.09 ENVIRONMENTAL REQUIREMENTS (Ref.SECTION 34 42 13.73 - SWITCH MACHINE LAYOUTS)?


220 10.14.13 Is seismic testing of signal layouts required per Title 24, CAC and City of LosAngeles Building Code for essential hospital facilities within Seismic Hazard Zone 4per SECTION 39.2.9 2.09 ENVIRONMENTAL REQUIREMENTS (Ref. SECTION 3442 13.76 - SIGNAL LAYOUTS)?


221 10.16.13 Line 13a. has been added for this Project to PRO FORM 132, which had not beenincluded in previous forms for LACMTA's RFPs. Since this is not a design/bid/buildproject, the design will not be done at the time the Proposal is due and,consequently, we may not have an accurate subcontractor quote at this time. Wetherefore request that the line be removed for this design-build Proposal.

222 10.16.13 Q44 submitted on 7/29/13 inquired about Section 01 71 43 Table 1, where LACMTAidentified an "After Hours Construction Permit" and asked about the status of theseMetro Obtained Permits and their validity throughout the period from NTP to FinalCompletion. The answer stated that this would be clarified in a future amendment.Since the allowable work hours are critical to assembling an accurate schedule andProject cost, we respectfully request clarification on the allowable work hours.

223 10.16.13 Q137 asked if there's been any approval for the raised decking concept for the otherstations besides Wilshire/Fairfax. LACMTA responded that no approval has beenobtained for Wilshire/La Brea or Wilshire/La Cienega raised decking. However, theAdvanced Utility Relocation contract for La Brea appears to be based on a raiseddecking concept. Please clarify.

224 10.16.13 Excavation at the Wilshire/Fairfax Station has to be carried carefully under thesupervision of a paleontologist. In order to estimate the number of crews to utilize forthis work, can LACMTA advise how many paleontologists would be available in a 24hour period?

Metro will provide the appropriate paleontological staff to support the Contractorscheduled work shifts and work locations at Wilshire/Fairfax Station. Please notethat the paleontologist must be able to clearly witness the excavation, which requiresadequate Contractor provided lighting at all times. Should adequate lighting not beprovided by the Contractor, the work location will be shut down at the expense of theContractor.

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225 10.16.13 The Geotechnical Baseline Report (Vol. II, 05) provides pH design values in TablesC-1, C-2, and C-3 lower than 4.2 (except for 3 soil types). These values aresignificantly lower than report 4.02 Corrosion Control Measures TM (Final) (2-14-2012) (Vol. IIIa,0,4) which states “2.1.1 Soil pH ranged from neutral to moderatelyalkaline and was not indicative of corrosivity. Page 28 of 115 states ‘Soil pH valuesvaried from 6.7 to 8.4’ ”. Note that the low GBR pH design values indicate a highlycorrosive environment and requires external protection to the precast segmental linerand the segment gaskets to ensure a 100-year design life, which does not appear tobe included in the reference design. Please clarify this apparent discrepancy andconfirm if the GBR values are correct.

226 10.16.13 Regarding archaeological and paleontologic requirements for the Purple Line project,it appears that the RFP, MOU, and MMP requirements are not consistent with eachother. There are only a few paleontologic firms that know how to work in the soilsnear the Tar Pits and that are approved by the George C. Page Museum of La BreaDiscoveries. Since Metro has a standard 5-year contract with an environmentalcompany that fulfills standard archaeological and paleontological services as part ofthe contract, is this firm to provide paleontologic services on the Purple Line or is aspecialized firm to be hired for this work under a project specific contract?Additionally, does Metro hire the specialty firm or does the Design/Build team?

A specialized firm, currently under contract to Metro for the Purple Line Extension, isproviding archaeological and paleontological work. Also, Please refer to the answerto question no. 177 above.

10.24.13

227 10.16.13 Thank you for responding to my Q&A about who will be hiring thepaleontological/archaeological firms for this Project. Since it is Metro and coincideswith the Section 1 Contract C1045, General Requirements-Division 1:

PA-3 - Retain the Services of a Qualified Principal Paleontologist Metro will retain theservices of a qualified principal paleontologist (minimum of graduate degree, 10years of experience as a principal investigator and specialty in vertebratepaleontology) to oversee execution of mitigation measures. Will Metro be putting outa separate bid for the paleontological services? Please advise how we can go aboutbidding on the paleontological portion of the work.

A specialized firm, currently under contract to Metro for the Purple Line Extension, isproviding archaeological and paleontological work. Also, Please refer to the answerto question no. 177 above.

10.24.13

228 10.23.13 We’ve observed that on most Metro construction projects there is usually a 24 hour-customer complaint line to track all construction-related complaints. Will a similarservice be installed for the Westside Subway Extension, and if so, will it be paid forand operated by Metro or the Contractor?

A similar service will be installed for the Purple Line Extension. It will be paid for andoperated by Metro. The Contractor’s scope of work regarding 24 hour complaintsare specified in Division 1 Section 01 35 95.

10.31.13

229 11.02.13 Amendment 3 includes significant changes to the appendages of the three proposedstations. In order to evaluate these changes, we respectfully request a copy of therevised Revit model and CAD files that incorporates them.

CADD files including Revit model were made available to the pre-qualified teams onNovember 5, 2013 as per LOI-RFP pg 1-4.

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230 11.02.13 We have reviewed the Traction Power Simulation Report and from our analysis ofthe proposed reference design, this will meet the operational requirements with bothSections One and Two of the Westside Extension complete. However, with onlySection One in operation, the reference design will not support the requiredoperational performance, requiring an additional TPSS to be added until Section Twobecomes operational. Please advise if the additional TPSS is required for this interimperiod while Section One is operating without Section Two.

No additional TPSS is required for this interim period while Section 1 is operatingwithout Section 2 as Metro Operations is not planning to operate 6 car train / 4-minute headway during Section 1 operation. Two-4000 kW rated substations at theindicated locations on the TP Load Flow Simulation report of RFP Volume III, areadequate for the Section 1 system operation.

11.08.13

231 11.02.13 On page 7-10 of the amended GBR (Amendment 3 October 15, 2013) there is areference in Para. 7.6 to Technical Requirements 31 23 43 Shaft and StationExcavation. This section has not been provided. Please provide the referencedsection.

Reference should have been to Section 31 50 00 – Excavation Support Systems.This will be revised in next amendment.

11.08.13

232 11.02.13 The Triennial DBE Goal referenced in Amendment 3, Page 3-14 #105 cannot befound in the RFP documents. Does LACMTA plan to provide this goal?

Please refer to LOI Supplement Design Build (RC-FTA), PRO FORM 031A pg.1-23

11.08.13

233 11.02.13 Section 3.01 E of 01 31 31 indicates all work needs to be performed by the utilityowner or a contractor approved by the utility. This effectively precludes the Biddersfrom self performing this work. This is not a typical requirement of other similarcontracts in the past because it is a requirement of only certain utilities. Pleasereconsider this restriction or identify the specific utilities that it is applicable to.

Requirements will be amended to clarify that Utility relocation work shall beperformed by the utility owner or the Contractor as shown in the Third Party UtilityContacts and Responsibility Table. Contractor-performed work shall comply with theutility owners’ standards and specifications. However, Work on LADWP (W)waterlines and Third Party telecommunication lines must be performed by acontractor that is pre-approved by the respective utility owner.

11.08.13

234 11.02.13 In Technical Requirement 31 74 16, 1.05.D.4, ASTM C1202 Chloride IonPenetrability is required. Would test results on the segmental lining for 90 and 180days aged concrete specimens be considered to be in compliance as it has beenshown that age has significant effects on the test results stated in the standard?

Metro would consider results on 56 and 90 day tests. 11.08.13

Please clarify the party responsible for the oil/gas well investigation.Contractor's scope of work on oil/gas wells per General Requirement 01 35 29 is "Closure, drainage, sealing, excavation, removel, transport or disposal of oil or gaswells or casings (Gas Casings)...". Also, "Party Responsible for ImplementingMitigation" for "Further Research on Oil Well Locations" is Metro according toAttachment A Mitigation and Monitoring Reporting Plan after Section 01 35 44.

Indicating seven wells within the tunnel alignment, however, the GeotechnicalBaseline Report says, "In the area where abandoned oil wells could potentially beencountered, probe holes ahead of the face and geophysical survey to detectobstructions will be required. If an abandoned oil well is detected underground aheadof the face, and evaluation of its condition and its abandonment must be carried outin accordance with appropriate regulations." and "All seven well locations must beinvestigated to establish which are within the construction work. Investigations shouldcontinue until all sites are fully explored even if abandoned wells are identified."

11.08.1311.02.13235 Yes, Contractor to survey for oil wells as stated in Section 31 71 19, Excavation byTunnel Boring machine, Paragraph 3.02 B,” Probe ahead of TBM as required byCal/OSHA and when with 200 ft of an oil well identified in the GBR. Performmagnetometer surveys in probe holes to detect metal casings.

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These sentences seems to mean that Contractor should do well casing survey.Please clarify

236 11.02.13 GC-25, Section 25.2 Repair and Replacement stated that: “Unless otherwiseprovided, Contractor shall repair or replace all existing structures, equipment, andvegetation damaged or removed by Contractor. Repairs and replacements shall be atleast equal to the existing structures, equipment, or vegetation, and shall match...”Section 25.3 Costs stated that: “All costs for protecting, removing and restoringexisting structures, equipment, and vegetation shall be the sole expense ofContractor. If Contractor fails or refuses to make timely repairs, restoration orreplacement LACMTA may make the repairs, restoration or replacement. All costsincurred by LACMTA, as determined by LACMTA, for such repairs, restoration orreplacement shall be repaid.”Would these two Sections GC 25.2 and 25.3, especially Section 25.3, be applicablefor adjacent building damage, if any, due to building settlement and distortion lessthan the maximum allowable defined in the Technical Requirements?

237 11.04.13 Due to the magnitude and complexity of the Project, we respecfully request theProposal due date be extended by eight weeks, to February 13, 2014.

LACMTA is not granting an extension to the RFP proposal deadline date at this time. 11.08.13

NOTE: the answers to the questions identified above are not binding. Only

written amendments revise the RFP document.

Questions regarding this RFP must be submitted in writing to LACMTA’s

Contact Person. In order to be considered, all questions must be received by

3:00pm, Pacific Standard Time ten (10) calendar days before the RFP due date.

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