April 5, 2018 ADDENDUM NO. 3 For CHICAGO INTERNATIONAL ... · foot width is incidental to the contract work and is Contractor’s responsibility to restore. Question 14: There is

ADD-/Page 1 of 6 SPEC. NO. 332055

April 5, 2018

ADDENDUM NO. 3 For

CHICAGO O’HARE INTERNATIONAL AIRPORT

BESSIE COLEMAN WATER MAIN REPLACEMENT

SPECIFICATIONS AND CONTRACT DOCUMENTS NO.332055 CDA Project Number H3068.15-00

For which Bids are scheduled to be opened in the office of the Chief Procurement Officer, Department of

Procurement Services, Room 103, City Hall, 121 N. LaSalle Street, Chicago, IL 60602 on 11:00 a.m., Central Time on April 17, 2018.

The following changes and/or revisions are incorporated into the Contract Documents as noted. All other provisions and requirements as originally set forth, except as amended by previous addenda, remain in force and are binding. Any additional work required by this Addendum must conform to the applicable provisions of the original Contract Documents.

In accordance with Paragraph 13 of the “Requirements for Bidding and Instructions for Bidders” in Part One of Three of the Specifications, the deadline for questions has passed. No additional questions will be answered prior to bid opening except as the Chief Procurement Officer, in her sole discretion, deems to be in the best interest of the City. UPON SUBMITTING THE BID, THE BIDDER MUST ACKNOWLEDGE RECEIPT OF THE ADDENDUM IN THE APPROPRIATE PLACE AT THE TOP OF THE SIGNATURE PAGE OF THE PROPOSAL FORM.

REVISIONS TO CONTRACT DOCUMENTS NOTICE OF ADDITIONS/REVISIONS

PART ONE OF THREE Schedule of Prices; Page S3-2

Change quantity of Item No. 12, Pay Item No. 02542-01, 60” DIAM. VALVE BASIN, from 10 to 11. A complete Schedule of Prices has been provided as an attachment.

PART THREE OF THREE

13110 The last page of Section 13110 was inadvertently omitted from the bid. The full Section 13110 has been provided as an attachment.

DRAWING

G-002 Change quantity of Item No. 12, Pay Item No. 02542-01, 60” DIAM. VALVE BASIN, from 10 to 11.

G-002 Change quantity of Item No. 31, Pay Item No. T-901-02, SEEDING, PERMANENT, TYPE 2, from 0 to 2,793.

G-002 Change quantity of Item No. 32, Pay Item No. T-901-03, SEEDING, PERMANENT, TYPE 3, from 0 to 2,793.

CU-002 Added callout for Existing FAA Far Field Monitor. Added Note 5.

CU-005 Change WV-H3068.15-07 from 48” to 60”.

CU-019 Added note to Detail 7 clarifying Type B Manhole requirements for lowering existing storm sewer.


CLARIFICATIONS TO QUESTIONS

Question 1: WV-H3068.15-07 as part of work on Connection #4 is called out as a 48-inch

diameter valve basin. This contradicts the referenced detail as a 60-inch

diameter valve basin and there is no pay item for 48-inch diameter valve basin.

If this valve basin is 60-inch diameter, the total quantity would be 11 each

instead of the bid quantity of 10 each. Please clarify.

Response: The referenced valve basin is 60-inch diameter. The total quantity of 60-inch diameter valve basins should be 11. See revised plans and details in Addendum No. 1.

Question 2: The plans call for the use of insertion valves as part of work at Connections #1

and #5. Recent experience suggests the Chicago Department of Water

Management (CDWM) will not allow insertion valves. Please confirm that

CDWM will issue a “B-Permit” per these bid plans.

Response: This project falls under the jurisdiction of the CDWM and Chicago Department of Aviation (CDA). The project requires the water main to be kept in service during construction of the project improvements, which requires the use of insertion valves. CDWM has reviewed the drawings and has not expressed concern with the using the proposed insertion valves. It is our understanding that the CDWM will issue a “B-Permit” for the work.

Question 3:

A potential subcontractor says that the valve basin to encapsulate a 12-inch

insertion valve should be an 8 to 10-foot diameter structure, yet the valve basin

detail is only a 5-foot diameter structure. Please provide a suitable detail and

pay item.

Response: The maximum valve length for the insertion valves referenced in Specification 02510, Part 2.06 is only 30 inches, which should accommodate installation in a 60-inch valve basin. No separate detail or pay item is required.

Question 4:

Recent experience suggests CDWM will have full time inspection of water main

construction at airport property. Will the Contractor be responsible for this cost

of inspection?

Response: The contractor shall only be responsible for testing and inspection costs as indicated in Specifications Part Two, Article XIII, Testing and Inspection.


Question 5:

Please provide a Traffic Control Plan.

Response: Specification 01502, Part 1.04 requires the contractor to prepare and submit a Traffic Control Plan prior to the start of work.

Question 6:

Where a single lane closure is used on Bessie Coleman or other streets, can

that lane closure be left in place, day and night, or must it be established at the

beginning of the work day and removed at the end of the work day?

Response: Contractor’s Traffic Control Plan, required as stated in Specification 01502, Part 1.04, shall avoid any lane closures on Bessie Coleman Drive, except as necessary to execute the project work. Specification 01502, Part 1.04, A.1.b., states that single lane closures, where required, will be permitted only between the hours of 10:00 p.m. and 6:00 a.m. The drawings contain notes, where applicable, regarding the requirement to maintain a single lane of traffic at all times (See Sheets CU-005, CU-006, CU-007, and CU-009). Additional lane closures, if required by Contractor, are to be included in the Contractor’s Traffic Control Plan.

Question 7:

Is there a maximum length a single lane closure can take?

Response: The maximum length of a single lane closure, unless unavoidable to execute the project work, shall be limited to a single work day. As noted in response to Item 6, single lane closures, where required, will be permitted only between the hours of 10:00 p.m. and 6:00 a.m. Contractor shall submit all requests and obtain all approvals for temporary lane closures from the Commissioner. See Specifications Section 01502 Traffic Control, Paragraph 1.04 1b.

Question 8:

Is parking available in the Commercial Vehicle Holding Area? If so, how many

spaces?

Response: No Contractor parking is available in the Commercial Vehicle Holding Area. Refer to the “Standard Notes on General Requirements” shown on Drawings G-003 through G-007 for information pertaining to equipment and vehicle parking. Construction Staging Area is shown on Sheet CU-0014 and is to be used for contractor’s mobilization, storage, and employee parking. Contractor is responsible for transporting his/her employees from the staging area to the jobsite.

Question 9:

How much of the Commercial Vehicle Holding Area can be partitioned off to

facilitate construction activities there?

Response: Construction activities in the Commercial Vehicle Holding Area shall be coordinated with appropriate agencies and in accordance with the approved Construction Operations Plan and Traffic Control Plan.


Question 10:

How much of the parking lots in Areas #5, #6, and #6 can be partitioned off for

construction activities?

Response: Construction activities in the parking areas #5, #6, and #7 shall be coordinated with appropriate agencies and in accordance with the approved Construction Operations Plan and Traffic Control Plan.

Question 11:

How many Portable Changeable Message Signs are required?

Response: The number of portable message sign boards shall be determined in the Traffic Control Plan to be prepared by the contractor, and approved by the Commissioner.

Question 12:

Is 7 feet the maximum width of pavement restoration that the contract will pay

for?

Response: Pavement removal and replacement of 7-foot width is based on Detail 3, Sheet CU-011, Water Main Trench Phase Detail. It is expected the contractor is capable of limiting pavement disturbance to those limits by saw cutting pavement and using due care. Any disturbance or damage outside of the 7-foot width is incidental to the contract work and is Contractor’s responsibility to restore.

Question 13:

Similar question for landscape restoration.

Response: Landscape restoration required within the 7-foot width shall be limited by using due care. Any landscape disturbance or damage outside of the 7-foot width is incidental to the contract work and is Contractor’s responsibility to restore.

Question 14:

There is no pay item for supplemental watering—please provide such a pay

item.

Response: Reference T-901, Paragraph 3.03A. Watering shall be performed in seeded areas as directed until final inspection and acceptance of the work. Watering is Contractor’s responsibility until work is accepted and no pay item will be added.

Question 15:

How many waterings are incidental to the contract?

Response: Watering needs will be dependent on weather conditions and project duration. All watering performed prior to final inspection and acceptance of the work shall be incidental to the contract. Also, see Item 14 above.

Question 16:

Section 13110 does not seem complete. There is no END OF SECTION 13110

designation. Are there additional pages to this specification?

Response: Yes. The last page of Section 13110 was inadvertently omitted from the bid. The full Section 13110 has been provided as an attachment to this addendum.


Question 17:

Is the builder’s risk insurance for the full value of the bid?

Response: Builder’s risk insurance shall meet the requirements of Specifications Part One, Section 2, Item A.5.

Question 18:

P-157-1 Paragraph 2.01.E says: “CA-11 or CA-1 crushed recycled concrete

shall be produced on site by contractor….” Please confirm who crushes

concrete. Does this specification prohibit importation of aggregate?

Response: Contractor will not be required to use crushed concrete or set up concrete crushing equipment for project work. Contract shall use materials in accordance with specification requirements. Import of CA-11 or CA-1 aggregate is allowed, as long as aggregate specifications are met.

Question 19:

P-157-2 Paragraph 3.02.A—who quantifies stabilization stone, and how is does

the Contractor get paid.

Response: Quantity and payment for installation of stabilization stone is included in pay item P-152-01, Unclassified Excavation. If undercut is required, Commissioner will direct Contractor by Field Order.

Question 20:

On sheet CU-006, there are 4 each Type B Manholes being proposed. Detail 2 on sheet CU-019 indicates a 36” riser. On sheet CU-019, Detail 7 indicates the existing 42” RCP being connected to the 36” riser.

Response: A note has been added to Detail 7/CU-019 to clarify design intent. At the two locations where the existing storm sewer is 42-inch diameter, the Type B Manhole bottom section (42-inch inside dimension) shall be extended vertically to an elevation as needed to install the existing 42-inch RCP storm sewer. Install 36-inch diameter riser indicated on Detail 2/CU-019 above existing 42-inch RCP storm sewer.

Question 21:

For the storm relocation, Bid Item 11 Adjust Storm Sewer, the specifications do not say if bypass pumping is required. Is bypass pumping required? If so, what is the approximate flow?

Response:

Sheet G-004, Note 41 states “Contractor is solely responsible for the means, methods, techniques, sequences, and procedures for construction.” This note is very clear that the Contractor is responsible for means and methods of construction. If the work requires bypass pumping or some other form of storm water management to execute the work, that is the Contractor’s sole responsibility to determine what is needed and how to execute it.


Question 22:

Detail 3 on Sheet CU-011 requires a three-stage pavement restoration process: FA-6, then concrete pavement after approval, then partial removal of concrete to place asphalt to match existing. The detail does not show thicknesses of concrete or asphalt, however. Please provide these thickness for bid purposes. The bid documents do not show any subsurface data (e.g. soil boring information). Please provide available historical data.

Response: Detail 3/CU-011 is a standard detail from the CDWM which is intended only to show the phasing and backfill materials for installation of the proposed water main. Pavement removal and replacement limits are shown on Details 1 (asphalt) and 3 (aggregate) on sheet CG-010. The thickness of the pavement patch shall match the type and thickness of the existing pavement section. For bid purposes, consider the replacement pavement section will be a minimum of 9 inches thick (including asphalt and aggregate). If the actual pavement thickness is less than or greater than 9 inches, Commissioner will direct Contractor by Field Order during construction.

No soil borings were performed for this project, and no historical subsurface data in the project area is available.

END OF ADDENDUM NO. 3

CITY OF CHICAGO JAMIE L. RHEE DEPARTMENT O PROCUREMENT SERVICES CHIEF PROCUREMENT OFFICER

CHICAGO DEPARTMENT OF AVIATION/ 13110-1 SACRIFICIAL ANODE CATHODIC PROTECTION O’HARE INTERNATIONAL AIRPORT BESSIE COLEMAN WATER MAIN February 28, 2018

SACRIFICIAL ANODE CATHODIC PROTECTION SECTION 13110

PART 1 GENERAL

1.01 STATEMENT OF PURPOSE

The importance of corrosion control to safe and cost effective operations at the Chicago O’Hare International Airport cannot be over emphasized. To this end the City of Chicago has established a corrosion control program which defines minimum corrosion control requirements for many key facilities at the Airport.

It is the purpose of this Specification to provide the user with essential requirements for corrosion protection systems. This Specification will assist contractors in meeting these requirements and assuring that the goals of the O’Hare Airport corrosion control program are achieved. By adhering to these requirements the corrosive deterioration of the facilities at the airport will be greatly reduced.

1.02 DESCRIPTION

A. Work performed under this specification shall consist of providing all labor, equipment and materials necessary to design, furnish and install a complete operational cathodic protection (CP) system. The work shall be performed in accordance with the provisions outlined in these specifications, applicable plans, state and local codes and standards, industry standards and is subject to other terms and conditions as determined by the Chicago Department of Aviation (CDA).

B. This Specification specifies contractor’s responsibilities for furnishing, installing and testing a complete cathodic protection system to protect water main and associated appurtenances from corrosion at the Chicago O’Hare International Airport.

C. This work involves the installation of a “Sacrificial Anode” cathodic protection (CP) System. The purpose of the CP system is to protect metallic surfaces, which are exposed, submerged or embedded, from corroding by passing a small DC current from the anode to the metallic surface.

D. The components of a cathodic protection system consist of anodes, test stations, conduit, and all associated electrical connections. The location of the CP features shall be coordinated by the Designer with the CDA and designed in accordance with the “Chicago O’Hare and Midway International Airports’ Cathodic Protection Standards”. The location of the features shall be shown on the site plans.


1.03 RELATED WORK

A. As specified in the following Sections

1. Section 02510 – Water Distribution

2. Section 02542 – Valve Basins

3. Section 02670 – Steel Casing

1.04 REFERENCES

A. The design and installation shall achieve the most stringent requirements of the following codes and standards.

1. Chicago Building Code

2. ASTM B418, Cast and wrought galvanic zinc anodes for use in

the electrolytes.

3. NEMA 250, Enclosures for Electrical Equipment

4. Chicago O’Hare and Midway International Airports’ Cathodic Protection Standards.

5. NACE SP-0177 (Standard Practice, formerly RP0177): for

Mitigation of Alternating Current and Lightning Effects on Metallic Structures and Corrosion Control Systems.

6. NACE SP-0169 (Standard Practice, formerly RP0169): for

Control of External Corrosion on Underground or Submerged Metallic Piping Systems (as applies).

PART 2 PROJECT REQUIREMENTS

2.01 DESCRIPTION

A. Contractor shall have a minimum of five years (5) years of experience with cathodic protection systems or they shall engage the services of a qualified Cathodic Protection Expert, certified by NACE International and subject to approval of the Commissioner, to design the installation and conduct testing of the Cathodic Protection System. Documented proof of qualifications shall be provided.

B. Contractor’s work shall be performed in accordance with the provisions of the design specifications, applicable plans, codes and standards, and is subject to other terms and conditions as determined by the Commissioner.


C. The cathodic protection system shall be furnished with all labor, equipment and materials to provide a complete and operable corrosion control system for the intended metallic structures, as shown on the drawings and specified herein. This includes, but is not necessarily limited to furnishing and installing anodes, test stations, CP junction boxes, reference electrodes, critical bond locations and incidental items.

D. The structural design, installation, testing and certification activities of the cathodic protection system shall be shown as separate activities in the Contract Baseline Schedule to reflect the staging for the construction sequences as shown on the plans and as specified herein.

E. Contractor shall document on the Project Plan any pre-construction field testing, engineering reviews and other associated activities necessary to properly install the specified cathodic protection system, including but not limited to:

• Soil Analysis

• Soil Resistivity Testing (Soil Resistance Testing).

• Geological / Drill Logs Analysis.

• Coating effectiveness.

• Identification of adjacent CP systems and testing to determine potential level of interference.

• Identification of potential stray DC current sources and testing to determine potential effects.

• System Design parameters and Calculations.

• A minimum design current of 1 mA/ft2 of bare metal.

• Current requirement testing, if deemed necessary.

Any design specification, requiring additional information or clarification, shall be documented and submitted to the Designer and Commissioner for review and resolution.

F. Contractor shall be responsible for the installation, performance testing and certification of all the continuity bonding and cathodic protection work.

G. Contractor shall establish and maintain a Quality Assurance / Quality Control(QA/QC) program which requires performance testing of the CP system during installation to assure installation to specifications and after installation for commissioning of the cathodic protection system.


H. The required electrical work shall be performed in accordance with the provisions of the design specifications, applicable plans, codes and standards, and is subject to other terms and conditions as determined by the Commissioner.

I. Cathodic Protection is required for the following metallic structures:

1. All metallic piping systems) 2. Water mains 3. Metallic structures associated with water mains 4. Underground Steel Casings

J. The project shall achieve the most stringent requirements of all applicable codes and standards for labor, equipment and materials utilized by the following agencies, except where more detailed requirements are indicated by the CDA:

1. Institute of Electrical and Electronic Engineers (IEEE)

Standards and Specifications.

2. National Electrical Manufactures Association (NEMA) – Standards and Specifications.

3. National Fire Protection Agency (NFPA 70) – National Electric Code.

4. Underwriters’ Laboratories (UL) – Standards for Safety.

5. American Society for Testing and Materials (ASTM) – Testing Methods and Materials.

6. National Association of Corrosion Engineers (NACE) – Applicable Standards.

7. City of Chicago Electrical Code (CEC).

8. Chicago Department of Aviation’s (CDA) “Basic Materials & Methods – Sec. 16100”.

9. All applicable O’Hare Electrical, Mechanical & Safety Standards including the Chicago O’Hare and Midway International Airports Design and Construction Standards and the Chicago O’Hare and Midway International Airports Cathodic Protection Monitoring and Maintenance Manual.

10. All applicable Federal, State and Local Legislations, Regulations and Codes.

11. U.S. Department of Transportation Regulations for the transportation of liquids by pipeline: Parts 192 and 195, Title 49 of the Code of Federal Regulations (DOT).

2.02 CATHODIC PROTECTION SYSTEM PERFORMANCE STANDARDS


A. All Cathodic Protection systems shall perform to levels sufficient to achieve the criteria specified by the National Association of Corrosion Engineers (NACE) Standards, Latest Edition and as applicable, specifically:

B. SP- 0169; Standard Practice – Control of External Corrosion on Underground or Submerged Piping Systems – Cast Iron or Steel Piping Structures.

2.03 QUALIFICATIONS

A. The Cathodic Protection Installer shall be a firm with a minimum of five (5) years of verifiable cathodic protection design and installation experience and shall submit to the Commissioner, before commencement of the work, the names, locations, and project descriptions of at least three (3) projects within the past twenty-four (24) months which contractor has satisfactorily performed cathodic protection services of a nature similar to the work proposed to be performed under this Contract.

B. The Cathodic protection installer shall perform all work under the direct supervision of a NACE certified Cathodic Protection Expert and the Chicago Department of Aviation. The Expert shall provide quality control and ensure all work is performed in accordance with this Detail Specification Section and the Commissioner approved submittals throughout this project.

C. Contractor shall employ the services of a Cathodic Protection Expert to review and approve the proposed CP system structural design in conjunction with these specifications. Any design concerns identified by the CP Expert shall be documented in writing and formally brought to the attention of the Designer and Commissioner for an official resolution.

D. The CP Expert shall direct and actively participate in field verification activities to ensure proper installation of the CP system.

2.04 SUBMITTALS A. The Installer's Qualifications: Verification of the Cathodic

Protection Installer's work experience and certification of the Cathodic Protection Expert shall be submitted in writing to the


Commissioner for approval prior to commencement of the work.

B. Contractor shall submit Shop Drawings of the proposed CP system components.

C. Contractor shall submit material catalog cuts covering applicable

CP materials including but not limited to:

• Chemical composition of sacrificial anodes and backfill materials.

• Anode specified weight and total weight of packaged anodes, including backfill material.

• Reference electrode and backfill materials (if applicable).

• Exothermic weld mold.

• Exothermic weld metal charges.

• Pipe test lead wire.

• Bonding wires and cables.

• Coating materials.

• CP test stations.

• Test station terminal boards with internal components.

• CP junction boxes.

• Insulated flanges / flange kits.

• Dielectric unions.

• Casing Isolators and End Seals.

• Grounding clamps (used as an alternative to Thermite welding).

• Cable connectors and labels.

• Elastomer filled shield for weld coating repair.

• Test station identification tags.

D. Contractor shall provide documentation indicating that the proposed CP Materials’ Supplier Specifications satisfy design and Contract requirements.

E. Contractor shall provide the manufacturers’ name, model

identification and proof of calibration for all equipment (CP testing and GPS locating) used to evaluate and document the CP system components.

F. Contractor shall submit the criteria used to develop the proposed CP system and for performing any necessary pre-construction evaluations and field testing documentation. This includes but not limited to:


• Field Testing as deemed necessary, specifically by the Cathodic Protection Expert.

• Soil Analysis (PH, salt / chloride content, etc.)

• Current Requirement Testing

• Soil Resistivity

• Isolation Testing

• Interference testing with surrounding structures.

• Review of geological records and well drilling Logs.

• Installation site review to identify potential sources of CP interference and construction limitations.

2.05 QUALITY ASSURANCE / QUALITY CONTROL (QA/QC)

Contractor shall be responsible for all aspects of QA/QC A. Buried and Submerged Structures

1. CP Testing shall be conducted on sacrificial anodes and

reference electrodes after installation and after approximately 24 inches of backfilling. The performance of each component shall be documented. Water furnished by contractor should be applied to these CP components when evaluating their performance per NACE Criteria.

2. Anodes size, number and location shall be documented on the CP System As-built drawing(s). The amount and type of backfill materials utilized shall also be documented.

3. Contractor shall test the electrical continuity of pipe segments after bond wires have been installed and prior to backfilling. Tests may be conducted in phases if necessary to meet construction schedules. The tests shall demonstrate that all continuity bond cables are in place and that the subject pipe segment is electrically continuous.

4. Tests of the cathodic protection system shall be conducted during installation and prior to complete backfilling. Tests may be conducted in phases to allow for construction schedules. These tests shall demonstrate there are no defects in materials or workmanship and criteria for cathodic protection shall be met when the project is complete.

5. Tests of electrical continuity and cathodic protection components shall be repeated after backfilling has been finalized. These tests shall demonstrate there are no defects in materials or workmanship and criteria for cathodic protection have been met.


6. Contractor’s Cathodic Protection Expert shall provide oversight of all aspects of the continuity bonding and cathodic protection system installation. They shall be on-site observing the installation (when deemed necessary) and shall develop or review and approve all test reports.

7. After installation, the cathodic protection system shall be inspected and tested by contractor’s Cathodic Protection Expert. Any deficiencies in the performance of the system revealed by the testing shall be corrected and retested until the system is performing as required. Any repairs and retests shall be at contractor’s expense.

8. As-Built Drawings shall be developed and submitted, along with all post construction Test Data, as final documentation for approval of the CP system.

PART 3 CATHODIC PROTECTION MATERIALS

3.01 GENERAL

All materials shall be the latest design, in new condition and the first quality standard product of manufacturers regularly engaged in the production of such materials. All materials shall be compatible and, where possible, be the product of one manufacturer to assure compatibility.

3.02 ANODE AND ANODE SYSTEMS

A. Sacrificial Anodes:

1. Pre Packaged High Potential Magnesium Anodes:

a. Anodes shall be prepackaged high potential magnesium having the following chemical composition:

Chemical Balance

Manganese 0.50 to 1.3%

Maximum Aluminum 0.01%

Maximum Silicon 0.05%

Maximum Copper 0.02%

Maximum Nickel 0.001%

Maximum Iron 0.03%

Maximum other 0.05% each


b. Consult Manufacturer’s specifications for available anode weight and size combinations.

c. All magnesium anodes shall be cast with a galvanized steel core. The weight of the core shall not exceed 0.10 pound per foot.

d. The anode lead wire minimum length shall be as design specified and shall be solid No.1 2 AWG copper wire with Type THWN/THHN insulation, black in color. The lead wire shall be connected to the core with silver solder. The connection shall be mechanically secured before soldering, and shall have at least one and one-half turns of wire at the connection. The entire connection shall be insulated to a 600 volt rating by filling the anode recess with an electrical sealing compound.

e. The galvanic anodes shall be packaged in a permeable cloth bag, filled with inert backfill material, containing a mixture of:

Ground Hydrated Gypsum 7 5 %

Powdered Bentonite 20%

Anhydrous Sodium Sulfate 5% Sulfate

f. Backfill shall have a grain size such that 100% is capable of passing through 20 mesh screen and 50% through a 100-mesh screen. The mixture shall be firmly packaged around the magnesium anode within the cloth bag by means of adequate vibration so that the magnesium anode is completely surrounded with a minimum 1/2 inch of backfill material.

g. Recommended Manufacturer and Products:

i. Galvotec Alloys

ii. Brance Krachy / BK Corrosion

Reference supplier’s specifications to identify appropriate product for specific applications.

3.03 PERMANENT REFERENCE ELECTRODES (PREs) - Provide a fixed point of reference for monitoring the cathodic protection system.

A. Underground PRE – Metallic structures.

1. Cu/CuSO4 designed PRE with an expected life of thirty (30) years.


2. Lead wire, factory assembled and continuous. Sufficiently long for specific installation location. Splices not allowed.

3. Installed and used per manufacturer’s recommendation and

specifications. 4. Recommended Manufacturer and Product: Borin Manufacturing

Inc.; Stealth SRE-007, CUY. 3.04 WIRING - Test Leads, Electric Bonding Cables, Structure and Anode

Header Cables

A. General

1. Appropriate type, gauge and coated wire and cable are to be utilized in each application:

2. All cables shall conform to ASTM Specification B8.

3. Insulation per ASTM D-1248, Type 1, Class A, Category 5, Grades E4 and E5.

B. Test Lead Wires

1. No. 12 AWG stranded or solid, THHN, THWN insulation or

comparable.

2. Color Coding of test leads per application is as follows:

Water pipelines – Blue

Casings - White

3. Two test leads shall be installed at each location unless specified otherwise.

C. Electrical Bonding Cables

1. The cable type and size (AWG) depends upon the application and pipe diameter

#12 AWG solid, THHN or THWN insulation (gasoline and oil resistant).

#8 AWG stranded, with HMWPE insulation.



2. In more severe environmental applications cables insulated with


Halar (ECTFE) and Permarad should be utilized.

3. Two bond cables shall be installed on the pipelines at each location where required.

4. A single #12 AWG bond cable should be used for electrical bonding of follower rings and similar clamping devices

D. Anode Header Cables

1. The cable shall be #2 AWG stranded, with HMWPE insulation.

2. In more severe environmental applications cables insulated with Halar (ECTFE) and Permarad should be utilized.

3. Looping of anode header cables should be implemented where feasible (i.e., both ends of cable are routed to single terminal for connection to the structure. Anodes are connected to the cable. Should a break develop in the cable, all anode would still be connected to the structure through one of the two cable ends).

E. Cable / Wire Splicing

1. Splicing is to be utilized only where specified in the CP system design specification.

2. Only manufacturer’s recommended electrical connectors are to be used when joining cables and leads.

3. Appropriate coating materials shall be applied to all splices. Allowable materials are:

Splicing gel pack kits such as Dryconn Visilock w SmartGel (98010)

Tape coat splice with appropriate rubber and vinyl electrical tapes and sealants.

Epoxy sealant / encasement kits

F. Thermite welding shall be utilized to connect cables to metallic structures, unless specified otherwise.

3.06 ELECTRICAL CONNECTIONS TO STRUCTURES

A. Thermite welding

1 . Thermite Welding shall be utilized for connecting CP cables and leads to metallic structures except where mechanical clamping techniques are required.

2. Follow equipment manufacturer’s guidelines and installation


instructions on product usage and operation.

3. Recommended Manufacturers and Products:

Continental Industries: Thermite Brazing Welders Models M100, M112-115 and associated Thermite Brazing Charges

Erico / Pentair: Thermite Brazing Charges #2 AWG P32, #12 AWG P15

B. Thermite braze / weld protection:

1. Thermite welds shall be coated with bitumen mastic coating (VOC compliant) and covered with a protective plastic cap. Alternatively, an epoxy coating compatible with the existing coating can be utilized.


Denso North America Inc. (Winn & Coales Intl,); Denso Bitumen Mastic. 7200 or 7125 Epoxy coatings.

PRO-MARK. Product; Polycaps.

Chase Corp. / Tapecoat®; Handy Caps IP

C. Mechanical Clamping – Electrical Connections:

1. Mechanical clamping shall be utilized on pipelines where thermite welding of test leads, bonding cables or anode leads is not allowed.

2. Utilize appropriate size grounding clamp dependent upon pipe

diameter and material.

3. Pipe coating shall be removed sufficiently in area of clamp to provide adequate metal to metal contact utilizing mechanical and / or chemical removal techniques as appropriate.

4. Grounding clamps and exposed copper wires shall be coated with epoxy coating (VOC compliant).


Thomas and Betts / Blackburn; 3900 Series Ground Clamps

Denso North America Inc., (Winn & Coales Intl.); 7200 or 7125 Epoxy coatings.

D. Coatings


1. Factory applied:

Fusion Bonded Epoxy (FBE) coatings are the standard.

Alternate coatings shall have performance characteristics appropriate for environmental conditions where installed.

Supplier shall provide certificates identifying the composition and performance characteristic of the factory applied coatings.

2. Field Applied:

Obtain coating supplier’s recommendation for coatings used to repair factory applied coating.

Utilize coating designed for the intended application. Coatings utilized for repair shall be compatible with the factory applied coating.

Obtain and retain a copy of the repair coating’s Material’s / Product Data Sheets.

Follow manufacturer’s guidelines and record environmental conditions while applying coatings.

3.07 CP JUNCTION BOXES (AND WALL-MOUNTED CP TEST STATIONS)

A. Junction Boxes are utilized to enclose electrical connections where multiple cables or wires are combined into a single electrical conductor. Alternatively, they can function as CP test stations when configured with appropriate internal components.

B. The environment in which the junction box is installed shall dictate the

enclosure types, ratings and sizes.

C. Acceptable enclosure materials and finishes include polyester powder coated steel, UV stabilized fiberglass re-enforced polyester (FRP), stainless steel or cast aluminum (for classified hazardous applications).

D. The preferred standard cabinet enclosure is constructed of 12 gauge wiped coat, mill galvanized steel and finished with 3-5 mils of white, fusion bond, polyester powder coating. Galvanized steel or stainless steel enclosures should be utilized in harsher environments.

E. The enclosure shall be rated for its application; Type 3R (vented type) and Type 4 or 4X (sealed types).

F. The junction box should be designed for either wall or post mounting


with mounting tabs (ears) located on the top and bottom of enclosure.

G. The junction box should be weatherproof for outdoor applications.

H. The junction box should be sized appropriately depending upon the number and type of connections being made. Typical Junction box dimensions: 12” (H) X 10” (W) X 5.25” (D).

I. The junction box should have a gasketed hinged door with lockable clasp.

J. Internal electrical bus bar with 4-14 AWG Lug terminals shall be used for connecting individual leads to header cable or structure lead. Number of terminals depends up number of connections being made.

K. Calibrated shunts should be installed on each circuit for monitoring current flow.

L. Bus bar, terminals and shunts are to be mounted onto 3/16” thick phenolic panel.

M. Engraved, phenolic labels are to be utilized to identify electrical connection.

N. When utilized as a CP Test Station, the test leads are to be connected to appropriately sized terminals mounted on to a 3/16” thick phenolic panel for electrical isolation.

O. Recommended Manufacturer and Product: Integrated Rectifier Technologies Inc. (IRT); Consult with manufacture on product for specific application.

3.08 CP TEST STATIONS

A. CP Test Stations are used for monitoring the effectiveness of the cathodic protection system.

B. Test Stations shall be installed per project drawings. They should be installed adjacent to their related structure(s), in locations which help prevent damage and are easily accessible for testing

C. Non-Air Side: Flush Fink or Pole Mount Fink Test Station; Recommended Manufacturers:

Cott Manufacturing

Pro-Mark and

Borin Manufacturing

D. Air Side (areas subject to aircraft traffic): Recommended Manufacturers and Products:


CP Test Valvco Model #668, heavy duty surface mount test station.

E. Wall mounted: Junction Boxes equipped with appropriate internal components can be used for monitoring the level of CP on multiple structures (Reference Junction Box Section).

F. Flush mounted test stations are to be installed in concrete. When not part of a concrete structure, install flush mounted test stations in an 18”×18”×6” thick concrete pad

G. Recommended Manufacturers and Products: Integrated Rectifier Technologies (IRT); Contact Manufacturer for products for specific application.

3.09 CALIBRATED SHUNTS

A. Calibrated shunts are used in cathodic protection applications to measure the current flow in electrical circuits. They are available in various capacities. The amount of expected CP current in a circuit and the level of measurement accuracy determines the capacity rating of the shunt to be utilized.

B. The following conversion factor are for shunts typically used in CP applications. Multiply the measured mV across the shunt by the conversion factor to calculate the current flow (Amps) thru the shunt.

Shunt Type / Rating: Conversion Factor (x mV):

50 mV / 0.5 A (0.100 Ohm) 0.02 50 mV / 2 A 0.04 50 mV / 5 A (0.010 Ohm) 0.1 50 mV / 10 A 0.2 50 mV / 20 A 0.4 50 mV / 25 A 0.5 50 mV / 30 A 0.6 50 mV / 40 A 0.8 50 mV / 50 A (0.001 Ohm) 1.0 50 mV / 60 A 1.2 50 mV / 75 A 1.5 50 mV / 100 A 2.0 50 mV / 120 A 2.4

C. Recommended Manufacturers and Products

Colt Manufacturing

Holloway Shunts

Consult with manufacturer regarding specific product for


application. 3.10 INSULATING FLANGE KITS, DIELECTRIC INSULATORS AND CASING

SPACERS

A. General: Insulating devices are utilized to electrically isolate metallic structures from each other.

B. Insulating Flange Kits:

1. Installed between adjacent metallic structures (between pipelines or between pipelines and other metallic structures).

2. Constructed of dielectric phenolic plastic sufficient to prevent the follow of electrical current over the operating temperature range of the specific application.

3. Designed to provide electrical isolation between matching flange surfaces and between the assemble bolts and the flanges. For load-compromised connections and heavily bolted connection generating significant gasket stresses and for operating pressure ranges adherent to the applicable ASME pressure standards.

4. Shall conform to Oil and Gas Industry’s API standards when applicable.

5. Recommended Sources and Products:

GPT and EnPro Industries Company – Contact Manufacturer to identify product for specific application.

Lamons Corporation - Contact Manufacturer to identify product for specific application.

C. Dielectric Unions

1. Utilized to electrically isolate connected pipelines or pipelines from connected structures.

2. Constructed of various metals with dielectric insulating materials between mating surfaces sufficient to prevent the follow of electrical current over the applications operating temperature range.

3. Shall conform to Oil and Gas Industry’s API standards when applicable.

D. Casing Spacers:

1. Casing Spacers shall be installed between the carrier pipe and its surrounding casing to prevent physical contact and the flow of electrical current between the carrier pipe and the casing.

2. They are to be constructed of rubber, dielectric phenolic plastic


and / or stainless steel and designed to provide sufficient strength to support the weight of the carrier pipeline when filled with product.

3. They shall conform to Oil and Gas Industry’s API standards as applicable.

4. Recommended Manufacturers and Products: GDT Industries; Consult with manufacturer regarding specific product for application.

E. End Seals:

1. End Seals are to be installed between the carrier pipe and surrounding structures, typically reinforced concrete walls.

2. They are to be constructed of dielectric phenolic plastic, rubber and stainless steel bolts. They are designed to provide sufficient strength to support the weight of the carrier pipeline when filled with product. They prevent the follow of electrical current and the flow of other liquid materials between the pipe and surrounding structure.

3. They shall conform to Oil and Gas Industry’s API standards as applicable.

4. Recommended Manufacturer and Product: GDT Industries; Consult with manufacturer regarding specific product for application.

PART 4 CONSTRUCTION METHODS

4.01 EXECUTION

A. General System Installation for Direct Buried Structures:

1. Contractor shall provide all labor associated with the installation of the cathodic protection system.

2. Project Coordination: Contractor shall coordinate all material, equipment and system installations such that the project schedule is not affected.

3. CP materials and equipment are to be installed per the project shop drawings.

4. CP materials and equipment are to be installed per manufacturer’s specification and recommendations.

5. Contractor shall measure and record the GPS coordinates of all CP system components as applicable to the specific project, including but not limited to CP test stations, permanent reference electrodes, impressed current rectifiers, anodes, CP junction


boxes, etc.

6. The GPS equipment shall be sub-meter rated for accuracy.

7. Contractor shall document the location of CP system component on as-built drawings

4.02 ELECTRICAL CONTINUITY

A. Continuity testing shall be performed and documented for each section.

B. Bond cables shall be installed as shown in the project design drawings via thermite welding or mechanical clamping where specified.

C. Testing shall be performed prior to and after backfilling and/or cementitious placement.

4.03 DIRECT BURIED ANODES

A. Sacrificial

1. Anodes shall be installed as shown in the project design drawings.

2. Follow manufacturer’s specifications for installation, use and operation.

4.04 PERMANENT REFERENCE ELECTRODES (PRE)

A. Direct Buried PRE

1. Reference Electrodes are to be installed as shown in the project design drawings.

2. Follow manufacturer’s specifications for installation, use and operation

4.05 TEST LEAD WIRES

A. Test lead wires shall be installed as shown in the project design drawings via thermite welding or mechanical clamping where specified.

B. Test for continuity with structures after installation.

4.06 TEST STATIONS AND JUNCTION BOXES

A. Install as shown in the project design drawings.

B. Follow manufacturer’s specifications for installation, use and


operation.

C. When using a Junction Box as a Test Station, test for continuity with structure after installation.

4.07 DOCUMENTATION / RECORDS

A. Contractor shall record on as-built drawings the GPS coordinates of all CP system components as applicable to the specific project, including but not limited to CP test stations, permanent reference electrodes, impressed current rectifiers, anodes, CP junction boxes, etc. GPS equipment shall provide sub-meter accuracy on measurements.

PART 5 INSPECTION AND TESTING

5.01 GENERAL - INSPECTION DURING CONSTRUCTION

A. Contractor shall employ the services of a National Association of Corrosion Engineers (NACE) International certified Cathodic Protection Expert to perform inspections of all cathodic protection system components during construction to ensure the proper materials are being used and installed properly.

B. The CP expert is also required to perform the final inspections and testing of the CP system components upon completion of the project for final approval.

C. Contractor shall perform periodic inspections to ensure the proper materials and installation methods are being used.

5.02 TESTING

A. Contractor shall provide, as a minimum, a Corrosion Technician under the direct supervision of a NACE International certified Cathodic Protection Expert to perform all final testing at the completion of the project.

B. Contractor shall perform final testing of all cathodic protection system components at the completion of the project.

5.03 MAJOR COMPONENT INSPECTION

A. Contractor shall document the progress of all major cathodic protection system components during installation, noting the component, date and any variances from the approved design.

5.04 PERIODIC INSPECTIONS

A. Contractor shall document the progress of the cathodic protection system during installation, noting any variances from the approved


design.

5.05 CONTRACTOR’S CATHODIC PROTECTION EXPERT

A. Shall have the following tests performed, prior to backfilling and as required during the course of the project, this includes testing not specified but necessary to assure proper installation:

1 Electrical Continuity, via measurements of pipe resistance between test stations.

2 Structure-to-Electrolyte Potentials at each CP Test Station location.

3 Anode Current Output via calibrated shunt readings.

4 Electrical Continuity of the anode lead wires and structure leads.

5.06 FIELD REPORTS

A. Field reports documenting related CP activities, including but not limited to, installation of pipes (physical description of install, measured S/E potentials, continuity measurements, photos of installations, etc.), drilling log for vertical anode columns, list of materials installed by location, GPS coordinates for all components in accordance with the Airport’s Standard Operating Procedures, etc., shall be prepared when work is performed.

B. Contractor’s Corrosion Expert shall review and sign all Inspection reports and submit them to the Commissioner for review and approval in a timely manner.

5.07 COMMISSIONING / ENERGIZATION TEST

A. Acceptance testing shall be performed to assure that the structures are adequately protected. Cathodic protection functions by forcing sufficient current to the structure surface creating a condition which helps to prevent corrosion. This surface condition corresponds to a change in the electrical potential of the structures surface.

B . The potential of the structure’s surface is monitored by using

reference electrodes. This test shall be made by measuring the potential immediately after the CP current is turned off.

C. Contractor’s Cathodic Protection Expert or his Representative shall conduct these tests.

D. The results of the testing shall be documented and submitted to the Commissioner for review and approval.

E. The acceptance criteria are the applicable National Association


of Corrosion Engineers (NACE) standard practice criteria.

5.08 DOCUMENTATION AND TRAINING

A. An operating and maintenance manual shall be submitted for documenting the requirements for the entire system.

B. A CP maintenance schedule with appropriate testing forms shall be developed and provided by contractor’s Cathodic Protection Expert.

C. The manual shall document the results of all tests performed on the project and shall include "as-built" drawings. Three manuals shall be provided.

D. Contractor’s Cathodic Protection Expert shall provide training to the Commissioner’s personnel regarding the operation and maintenance of the system.

PART 6 METHOD OF MEASUREMENT

6.01 MEASUREMENT

A. Sacrificial Anode Cathodic Protection will be measured on a lump sum basis as described herein.

PART 7 BASIS OF PAYMENT

7.01 PAYMENT

A. Sacrificial Anode Cathodic Protection will be paid for on a lump sum basis. Payment will be made under:

1. Item 13110-01 Sacrificial Anode Cathodic Protection, L.S.

END OF SECTION 13110

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MAYOR

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DATE:

SHEET NO.

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PROJECT NO.:

DESIGNED:

2/2

8/2

018

3:5

4:1

5 P

M

RAHM EMANUEL

GINGER S. EVANS

COMMISSIONER

REVISION

02/28/2018

PROJECT NAME:

BY:

APPROVED AS WORKING PLAN

DRAWN: CHECKED:

SHEET TITLE:

O'HARE INTERNATIONAL AIRPORT

CITY OF CHICAGO


CHICAGO DEPARTMENT OF AVIATION

MLL DAK

KEY PLAN

H3068.15-00

EJB

8

WATER MAIN REPLACEMENT

BESSIE COLEMAN

FH-H6133.320-262

FH-H6133.320-261

WV-H6133.320-003

FH-H6133.320-260

WV-H6133.320-002

12" DIP

6"

12" DIP

12" DIP

12"

DIP

CA

SIN

G24"

ST

EE

L

CASING24" STEEL

CA

SIN

G24"

ST

EE

L

CASING24" STEEL

BB-H6133.320-261

1"

SE

RVIC

E

12"

DIP

12"

DIP

WV-H4013.12-05

FH-OH6133.320-261

ABAND

60"W

20'

20"

20"

20"

30"

12"

ABANDONED 24"

ABAND 24"

24"

48"

12"

48"

MA

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AIR

WES

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FE

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MAIN

WA

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DIS

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N

DIV

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48" CITY WATER

48"

72"RCP

54"

72"

(RB-8)

30"

60"

78'

54"

ABAND. 24"

FH ABAND.

48"

1•"

60"

8"

8"

AB

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OF

DES

PL

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WA

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MAIN

8" ABAND.

8"

24" ABAND.

3" 30"

AB

AN

D

1•"

2"

2"

60"

60"

48"

48"

12"GV

12"GV

12"GV

12"GV

METER

VALVE

V.B.

12"GV

CHLORINE

DIFFUSER

VOLT(TYP)

MV

MV

VV

FH

VV

CASING P

IPE

21" JACKED S

TEEL

SPRINKLER HEADS(TYP)

END

30" CONC.30" CONC.

30" CONC.30" CONC. 30" CONC. 30" CONC.

HOUSE

METER

12"

C.I.

12"

C.I.

20"

CO

NC.

12"

C.I.P.

12" C.I.P.

(RB8)

30" CONC.

(RB8)

(RB8)

(RB8)

30"

CONC.

(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)

(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)

(RB8)

30"

CO

NC.

30" CONC.

(RB27)

42"

CASING

30"

CONC.

42" C

ASIN

G

30" CONC.

30"

CO

NC.

(ODP2

01)

(ODP2

01)

(ODP201)

(ODP20

1)

(ODP20

1)

(ODP20

1)

(RB33)

30" CONC.

(ODP660)

30" CONC.

(ODP660)

20"

D.I.P.

(OD

P660)

12"

C.I.P.

(RB33)

4" C.I.P.

(RB33)

(RB33)

30" CONC. 30" CONC.

(ODP660)(ODP660)

6"

D.I.P.

(OD

P660)

(OD

P651)

(ODP651)

(OD

P651)

30"

30"

(PW2200)

(PW

2200)

(PW2200)

(PW

2200)

90"

CO

NC

90" CONC

90"

CO

NC

(H-82291)

(H-8

2291)

(H-82291)

90" CONC

90"

CO

NC

90"

CO

NC

90"

CO

NC

(H-82291)

(H-82293)

(H-8

2291)

(H-8

2293)

(H-8

2291)

(H-82291)

(H-82291)

120"

CASIN

G

90"

CO

NC

(H-8

2291)

90"

CO

NC

120" CASING

(H-82291)

24"

DIP

18"

DIP

24" DIP

8"

PV

C

8" PVC8" PVC

8"

PV

C

EYEWASH

8" PVC

8" PVC8" PVC

8"

PV

C

1.5"

8" P

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8"

PV

C8"

PV

C

6"

8"

PV

C

8" PVC

8" PVC

8" PVC

1.5"

12" PVC

8" DIP8" DIP

8"

PV

C

1.5"

12" PVC

8"

PV

C

8"

PV

C

14" STEEL CASING

8" PVC

6"

8" DIP

1.5"

(DP

NB-90-9007)

(DPNB-90-9007)

(OHR-85-0098)

(OHR-85-0098)(OHR-85-0098)N.I.S. N.I.S.

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098) (OHR-85-0098) (OHR-85-0098)

(OHR-

85-0

098)

(OH

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8"

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(OHR-85-0098)

(OHR-85-0098)

(OHR-

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(OHR-85-0098)(OH

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(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OH

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(OH

R-85-0098)

N.I.S.

(H9952-02)

SERVICE 1997)

(PER NAT'L SURVEY

SE

RVIC

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(PE

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NA

T'L

SU

RV

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SE

RVIC

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(PE

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(PE

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(PE

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T'L

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RV

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SERVICE 1997)

(PER NAT'L SURVEY

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(PE

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RV

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SERVICE 1997)

(PER NAT'L SURVEY

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(PE

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SERVICE 1997)

(PER NAT'L SURVEY

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(PER NAT'L SURVEY

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(PER NAT'L SURVEY

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(PER NAT'L SURVEY

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(PER NAT'L SURVEY

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(PE

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12"

METER VAULT

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12"

DIP

12"

DIP

(RB8)

20"

12" WATER

12"

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(RB8)

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(RB33)

(PW

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2" DIP

(OH

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(OH

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(OH

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8"

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(OH

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(OH

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OMP SURVEY 213)

(VERIFIED PER

OMP SURVEY 213)

(VERIFIED PER

6" DIP

(OH

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(OH

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N.I.S.

N.I.S.

(OH

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(OH

R-85-0098)

(OH

R-85-0098)

N.I.S.

N.I.S.

(OH

R-85-0098)

2" DIP

3" DIP

(OH

R-85-0098)

10" DIP

N.I.S.

N.I.S.

(OH

R-85-0098)

1.5" DIP

10"

N.I.S.

6" DIP

N.I.S.

OM

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(PE

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(PER NAT'L

(PER H8014)

(PER H8014)

12" DIP

12"

DIP

OM

P

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)

(VE

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PE

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12"

DIP

12"

DIP

12"

DIP

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(VE

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PE

R

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P

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)

(VE

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12" DIP

12" DIP

8" DIP

6" DIP

4" DIP

(H5090)

1990)

(PE

R

US

AF

SERVICE 1997)

(PER NAT'L SURVEY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SERVICE 1997)

SURVEY

(PER NAT'L

SE

RVIC

E 19

97)

SU

RV

EY

(PE

R

NA

T'L

SE

RVIC

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97)

(PE

R

NA

T'L

SU

RV

EY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

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12"

DIP

(OH

R-85-0098)

TANK

TANK

TANK

TANK

TANK

TANKS

TANK

8+00 9+00 10+00

11+0012+00

13+00 14+00 15+00

8+00 8+50 9+00 9+50 10+00 10+50 11+00 11+50 12+00 12+50 13+00 13+50 14+00 14+50 15+00 15+50

0 15' 30'

CU-002

NORTHEAST PERIMETER ROAD (AIRSIDE)

STA. 7+77 TO 15+60

PLAN AND PROFILE

PROPOSED WATER MAIN A

AA B

B

(BETWEEN MATCHLINES A-A AND B-B)

783 LF 12" DIP CLASS 56 WATER MAIN

BESSIE COLEMAN DRIVE (SB LANES)

BESSIE COLEMAN DRIVE (NB LANES)

SE

E S

HE

ET C

U-0

01 F

OR C

ON

TIN

UA

TIO

N

MA

TC

HLIN

E A-A S

TA. 7+77

SE

E S

HE

ET C

U-0

03 F

OR C

ON

TIN

UA

TIO

N

MA

TC

HLIN

E B-B S

TA. 15+60

0 15' 30'

01'

2'

E 1105901.25

N 1937258.53

12"x12"x8" DIP MJ TEE

632

633

634

635

636

637

638

639

640

641

642

643

644

632

633

634

635

636

637

638

639

640

641

642

643

644

CU-010 CU-011

1A-1H 1A-1C

ALSF LIGHTS

RWY 9R-27L

ALSF LIGHTS

RWY 9R-27L

ALSF LIGHTS

RWY 9R-27L

(SEE NOTE 2)

FENCE CROSSING

E 1105911.25

N 1937258.53

AND VALVE BOX

FIRE HYDRANT W/8" GATE VALVE

FH-H3068.15-02

STA. 13+48

HYDRANT LEAD

FH-H3068.15-02

(SEE NOTE 1)

INSTALL UTILIZING JOINT DEFLECTION

8" GAS LINE

CROSSING #8

8" GAS LINE

CROSSING #10

2-WAY FAA DUCT

CROSSING #9(ACROSS HYDRANT LEAD)

ELECTRIC DUCT BANK

CROSSING #11

ELECTRIC DUCT BANK

CROSSING #12

(BETWEEN TEE AND HYDRANT)

10 LF 8" DIP CLASS 56 WATER MAIN

17.0

4'

17.2

1'

17.2

4'

13.4

7'

LIGHT OFFSET STA 9+82 (SEE NOTE 1)

BEGIN HORIZONTAL TRANSITION FOR ALSF

(SEE NOTE 1)

LIGHT OFFSET STA 13+00

TRANSITION FOR ALSF

END HORIZONTAL

EXISTING SURFACE GRADE

ISSUED FOR BID02/01/187

6 08/04/17 ISSUED FOR DPS REVIEW REV 2

ISSUED FOR DPS REVIEW01/04/175

4 11/18/16 100% DESIGN FOR CDA REVIEW

90% DESIGN FOR CDA REVIEW10/19/163


DESCRIPTIONDATEREV

8 ADDENDUM 102/28/18

(SEE NOTE 5)

EXISTING FAA FAR FIELD MONITOR

8

AND SUBMIT STRUCTURAL SUPPORT DRAWINGS FOR REVIEW AND APPROVAL.

SUPPORT EXISTING FAA FAR FIELD MONITOR. CONTRACTOR SHALL COORDINATE WITH THE FAA PRIOR TO EXCAVATING IN THE AREA 5.

SPECIFICATION SECTION 02510.

ALL HORIZONTAL AND VERTICAL FITTINGS REQUIRE RESTRAINED JOINTS IN ACCORDANCE WITH DETAIL 2, SHEET CU-011 AND 4.

REFERENCE SHEETS CU-015 THROUGH CU-018 FOR ADDITIONAL UTILITY CROSSING INFORMATION.3.

PERIOD. EXCAVATION SHALL BE MONITORED AT ALL TIMES UNTIL WORK IS COMPLETE.

REMOVING FENCE. CONTRACTOR SHALL START EXCAVATION, INSTALL WATER MAIN, AND BACKFILL EXCAVATION IN THE SAME WORK

CONTRACTOR SHALL HAND DIG BENEATH FENCE AND BETWEEN FENCE POSTS AT FIRE HYDRANT LEAD CROSSING WITHOUT 2.

FITTINGS SHALL BE PROVIDED IF NECESSARY TO ACHIEVE REQUIRED OFFSET.

ALLOWABLE JOINT DEFLECTION. OFFSET REQUIREMENTS FROM ALSF LIGHTS ARE DIMENSIONED IN PLAN VIEW. HORIZONTAL

INASMUCH AS POSSIBLE. CONTRACTOR SHALL FOLLOW MANUFACTURER RECOMMENDATIONS AND PROJECT SPECIFICATIONS FOR

1.

NOTES:

8

C

V

PP "8

FH

12"

641

641

641

642

642642

642

642

642

642

MAYOR

1

DATE:

SHEET NO.

2345678

12345678

c:\users\e

beck\d

ocu

ments\p

wlocal\d

ms00388\H

3068.1

5-0

0-C

U-0

05.d

gn

H

G

F

E

D

C

B

A A

B

C

D

E

F

G

H

PROJECT NO.:

DESIGNED:

2/2

8/2

018

9:5

1:3

7 A

M

RAHM EMANUEL

GINGER S. EVANS

COMMISSIONER

REVISION

02/28/2018

PROJECT NAME:

BY:


DRAWN: CHECKED:

SHEET TITLE:


CITY OF CHICAGO



MLL DAK

KEY PLAN

H3068.15-00

EJB

8


BESSIE COLEMAN

FH-H6133.320-262

FH-H6133.320-261

WV-H6133.320-003

FH-H6133.320-260

WV-H6133.320-002

12" DIP

6"

12" DIP

12" DIP

12"

DIP

CA

SIN

G24"

ST

EE

L

CASING24" STEEL

CA

SIN

G24"

ST

EE

L

CASING24" STEEL

BB-H6133.320-261

1"

SE

RVIC

E

12"

DIP

12"

DIP

WV-H4013.12-05

FH-OH6133.320-261

ABAND

60"W

20'

20"

20"

20"

30"

12"

ABANDONED 24"

ABAND 24"

24"

48"

12"

48"

MA

YF

AIR

WES

T

FE

ED

ER

MAIN

WA

TE

R

DIS

TRIB

UTIO

N

DIV

ISIO

N60"

48" CITY WATER

48"

72"RCP

54"

72"

(RB-8)

30"

60"

78'

54"

ABAND. 24"

FH ABAND.

48"

1•"

60"

8"

8"

AB

AN

D.

TO

CIT

Y

OF

DES

PL

AIN

ES

48"P

CP

WA

TE

R

MAIN

8" ABAND.

8"

24" ABAND.

3" 30"

AB

AN

D

1•"

2"

2"

60"

60"

48"

48"

12"GV

12"GV

12"GV

12"GV

METER

VALVE

V.B.

12"GV

CHLORINE

DIFFUSER

VOLT(TYP)

MV

MV

VV

FH

VV

CASING P

IPE

21" JACKED S

TEEL

SPRINKLER HEADS(TYP)

END

30" CONC.30" CONC.

30" CONC.30" CONC. 30" CONC. 30" CONC.

HOUSE

METER

12"

C.I.

12"

C.I.

20"

CO

NC.

12"

C.I.P.

12" C.I.P.

(RB8)

30" CONC.

(RB8)

(RB8)

(RB8)

30"

CONC.

(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)

(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)(RB8)

(RB8)

30"

CO

NC.

30" CONC.

(RB27)

42"

CASING

30"

CONC.

42" C

ASIN

G

30" CONC.

30"

CO

NC.

(ODP2

01)

(ODP2

01)

(ODP201)

(ODP20

1)

(ODP20

1)

(ODP20

1)

(RB33)

30" CONC.

(ODP660)

30" CONC.

(ODP660)

20"

D.I.P.

(OD

P660)

12"

C.I.P.

(RB33)

4" C.I.P.

(RB33)

(RB33)

30" CONC. 30" CONC.

(ODP660)(ODP660)

6"

D.I.P.

(OD

P660)

(OD

P651)

(ODP651)

(OD

P651)

30"

30"

(PW2200)

(PW

2200)

(PW2200)

(PW

2200)

90"

CO

NC

90" CONC

90"

CO

NC

(H-82291)

(H-8

2291)

(H-82291)

90" CONC

90"

CO

NC

90"

CO

NC

90"

CO

NC

(H-82291)

(H-82293)

(H-8

2291)

(H-8

2293)

(H-8

2291)

(H-82291)

(H-82291)

120"

CASIN

G

90"

CO

NC

(H-8

2291)

90"

CO

NC

120" CASING

(H-82291)

24"

DIP

18"

DIP

24" DIP

8"

PV

C

8" PVC8" PVC

8"

PV

C

EYEWASH

8" PVC

8" PVC8" PVC

8"

PV

C

1.5"

8" P

VC

8"

PV

C8"

PV

C

6"

8"

PV

C

8" PVC

8" PVC

8" PVC

1.5"

12" PVC

8" DIP8" DIP

8"

PV

C

1.5"

12" PVC

8"

PV

C

8"

PV

C

14" STEEL CASING

8" PVC

6"

8" DIP

1.5"

(DP

NB-90-9007)

(DPNB-90-9007)

(OHR-85-0098)

(OHR-85-0098)(OHR-85-0098)N.I.S. N.I.S.

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098) (OHR-85-0098) (OHR-85-0098)

(OHR-

85-0

098)

(OH

R-85-0098)

8"

PV

C

(OHR-85-0098)

(OHR-85-0098)

(OHR-

85-0

098)

(OHR-85-0098)(OH

R-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OHR-85-0098)

(OH

R-85-0098)

(OH

R-85-0098)

N.I.S.

(H9952-02)

SERVICE 1997)

(PER NAT'L SURVEY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SERVICE 1997)

(PER NAT'L SURVEY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SERVICE 1997)

(PER NAT'L SURVEY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SERVICE 1997)

(PER NAT'L SURVEY

SERVICE 1997)

(PER NAT'L SURVEY

SERVICE 1997)

(PER NAT'L SURVEY

SERVICE 1997)

(PER NAT'L SURVEY

SERVICE 1997)

(PER NAT'L SURVEY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

12"

METER VAULT

UNDERGROUND

12"

DIP

12"

DIP

(RB8)

20"

12" WATER

12"

WA

TE

R

30" CONC.

(RB8)

12" C.I.P.

(RB33)

(PW

2200)

N.I.S.

2" DIP

(OH

R-85-0098)

(OH

R-85-0098) (O

HR-85-0098)

(OH

R-85-0098)

8"

PV

C8"

PV

C

(OH

R-85-0098)

(OH

R-85-0098)

(OH

R-85-0098)

(OH

R-85-0098)

(OH

R-85-0098)

OMP SURVEY 213)

(VERIFIED PER

OMP SURVEY 213)

(VERIFIED PER

6" DIP

(OH

R-85-0098)

(OH

R-85-0098)

N.I.S.

N.I.S.

(OH

R-85-0098)

(OH

R-85-0098)

(OH

R-85-0098)

N.I.S.

N.I.S.

(OH

R-85-0098)

2" DIP

3" DIP

(OH

R-85-0098)

10" DIP

N.I.S.

N.I.S.

(OH

R-85-0098)

1.5" DIP

10"

N.I.S.

6" DIP

N.I.S.

OM

P

SU

RV

EY 213

)

(VE

RIF

IED

PE

R

OM

P

SU

RV

EY 213

)(V

ERIF

IED

PE

R

8"

PV

C12

"

PV

C

SU

RV

EY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SURVEY SERVICE 1997)

(PER NAT'L

(PER H8014)

(PER H8014)

12" DIP

12"

DIP

OM

P

SU

RV

EY 213

)

(VE

RIF

IED

PE

R

12"

DIP

12"

DIP

12"

DIP

OM

P

SU

RV

EY 213

)

(VE

RIF

IED

PE

R

OM

P

SU

RV

EY 213

)

(VE

RIF

IED

PE

R

12" DIP

12" DIP

8" DIP

6" DIP

4" DIP

(H5090)

1990)

(PE

R

US

AF

SERVICE 1997)

(PER NAT'L SURVEY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SERVICE 1997)

SURVEY

(PER NAT'L

SE

RVIC

E 19

97)

SU

RV

EY

(PE

R

NA

T'L

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

SE

RVIC

E 19

97)

(PE

R

NA

T'L

SU

RV

EY

12"

DIP

(OH

R-85-0098)

TANK

TANK

TANK

TANK

TANK

TANKS

TANK

8+00 9+00 10+00

11+00

7+50 8+00 8+50 9+00 9+50 10+00 10+50 11+00 11+50

0 15' 30'

SCHLITZ ROAD

CU-005

STA. 11+64

END WATER MAIN B

ATSATS

SE

E S

HE

ET C

U-0

04 F

OR C

ON

TIN

UA

TIO

N

MA

TC

HLIN

E A-A S

TA. 7+50

STA. 7+50 TO 11+64

PLAN AND PROFILE

PROPOSED WATER MAIN B

AND END OF WATER MAIN B)

(BETWEEN MATCHLINE A-A

CLASS 56 WATER MAIN

414 LF 12" DIP

AA

4

0 15' 30'

01'

2'

E 1106624.05

N 1938207.61

E 1106610.59

N 1938193.87

634

635

636

637

638

639

640

641

642

643

644

634

635

636

637

638

639

640

641

642

643

644

CU-013

FHQ11-03

EXISTING FIRE HYDRANT

EXISTING VALVE #2

633 633

2

CU-012

2

CU-012

E 1106623.50

N 1938258.99

CONNECT TO EXISTING 12" WATER MAIN

CONNECTION #4

CONNECTION #4

ELECTRIC DUCT BANK

CROSSING #46

ELECTRIC DUCT BANK

CROSSING #49

ELECTRIC DUCT BANK

CROSSING #51

ELECTRIC DUCT BANK

CROSSING #52

ELECTRIC DUCT BANK

CROSSING #53

RIM=642.00

E 1106628.41

N 1938259.07

W/12" GATE VALVE

60" WATER VALVE BASIN

WV-H3068.15-06

RIM=642.07

E 1106623.44

N 1938263.99

W/12" GATE VALVE

60" WATER VALVE BASIN

WV-H3068.15-07

VERIFY UTILITY DEPTH AND SIZE.

ISSUES. UTILITY DEPTH AND SIZE UNKNOWN. CONTRACTOR SHALL FIELD

WAS NOT ABLE TO BE SURVEYED DUE TO OBSTRUCTIONS OR OTHER FIELD

SPECIAL ATTENTION IS BROUGHT TO UTILITY CROSSING #54. CROSSING #54

7+50

632632

631631

36" STORM SEWER

CROSSING #54

REQUIRED. SEE NOTE 3)

(EXTRA PROTECTION

8" STORM SEWER

CROSSING #47


(EXTRA PROTECTION

8" SANITARY SEWER

CROSSING #48


(EXTRA PROTECTION

8" STORM SEWER

CROSSING #50

INSULATION

TRENCH

ACCORDANCE WITH DETAIL 2, SHEET CU-011 AND SPECIFICATION SECTION 02510.

ALL HORIZONTAL AND VERTICAL FITTINGS REQUIRE RESTRAINED JOINTS IN 4.

24" DUCTILE IRON CASING PIPE IN ACCORDANCE WITH SPECIFICATION SECTION 02510.

EXTRA PROTECTION SHALL BE PROVIDED BY ENCASING PROPOSED WATER MAIN WITH 3.

LANE OF PAVEMENT OPEN TO TRAFFIC AT ALL TIMES.

AT CROSSING OF SCHLITZ ROAD, CONTRACTOR SHALL MAINTAIN AT LEAST ONE FULL 2.

INFORMATION.

REFERENCE SHEETS CU-015 THROUGH CU-018 FOR ADDITIONAL UTILITY CROSSING 1.

NOTES:

18"

MIN.

EXISTING SURFACE GRADE

8


6

5

4

3

2 07/27/16

10/19/16

11/18/16

01/04/17

08/04/17 ISSUED FOR DPS REVIEW REV 2

ISSUED FOR DPS REVIEW

100% DESIGN FOR CDA REVIEW



REV DATE DESCRIPTION

8 ADDENDUM 102/28/18

CU-019

CU-019

1

CU-019

2

CU-019

3

CU-019

4

CU-019

5

CU-019

6

NOT TO SCALE

4-03/F1

SUBDRAINS

BEDDING FOR PIPES AND

SEWER PIPE

MIN.

MIN.

TRENCH BACKFILL

EXTERNAL BARREL

BA

CK

FIL

L

USAGE STABILIZATION STONE

BEDDING MATERIAL CA-7 OR CA-11

UNLESS CATHODICALLY PROTECTED, IN

WHICH CASE USE PEAGRAVEL

CONFORMING TO CA-16 GRADATION

OR OMP.

UNDISTURBED

GROUND LINE

USE ACCEPTABLE FILL UNLESS

UNDER OR WITHIN 2 FEET OF

ANY EXISTING OR PROPOSED

PAVEMENT, SHOULDER, OR

STRUCTURE, IN WHICH CASE

USE TRENCH BACKFILL

TABLE OF GRADATIONS

% PASSING BY WEIGHT

SIEVESIZE

BEDDING

MATERIALTRENCHBACKFILL

TR

EN

CH

1'-0"

2' PLUS

6"

1'-0"

06/01/2006

4-03_F1.dgn

3"

2 1/2 "

2"

1 1/2 "

1"

3/4 "

1/2 "

3/8 "

No. 4

No. 10

No. 16

No. 50

No. 100

No. 200 0 - 12

0 - 40

84 - 100

100

100

100

100

CA-1 FA-6CA-16CA-11CA-7

GRANULAR TRENCH STABILIZATION

(CA-1) WHERE REQUIRED BY ENGINEER

Issue Date:

Detail No.:

NOT TO SCALE

48" DIA AND 42" DIA.

TYPE "B" MANHOLE FOR SEWERS

*

FOR 42" DIA. SEWER

FOR 48" DIA. SEWER

FOR 42" DIA. SEWER

DIA.

FOR 48" DIA. SEWER

BOTTOM LIMIT

OF PAYMENT

FOR MANHOLE

A

"B"

A

"A"

MA

X.

MA

X.

SECTIONAL PLAN

SECTION A-A3'-0" DIA. FOR SEWERS 42" DIA. & SMALLER

4'-0" DIA. FOR SEWERS 48" DIA. & LARGER

TYPE "X"

LADDER RUNG

KEY TO SUIT

PRECAST RINGS

AS FURNISHED

TYPE "X"LADDER RUNG(ABOVE)

1"

D/2

7/8

DIA.

18 D

18"

12 12"

12 12" 12

12"

2"

112

4"

8'-0"

21"

8"

12"

3'-6"

3'-6"

10"

SE

WE

R DIA. + 2'-1"

VA

RIE

SS

EW

ER DIA.

VA

RIE

S

SE

WE

R DIA.

21"

60°

10"

4'-0"

3'-0" 3'-0" 24"

12 1

2"

12 1

2"

8"

36"

4'-0"

12 1

2"

60°

*

4-03_B1.dgn 4-03/B1

2.

1.

NOTES:

4/08/2011Issue Date:

Detail No.:

NOT TO SCALE

FOR 30" DIA. SEWER

FOR 36" DIA. SEWER

FOR 30" DIA. SEWER

FOR 36" DIA. SEWER

DIA.A

"B"

"A"

A

MA

X. M

AX.

36" DIA. AND 30" DIA.

TYPE "B" MANHOLE FOR SEWERS

4"

KEY TO SUIT

PRECAST RINGS

AS FURNISHED

SECTION A-A

TYPE "X"

LADDER RUNG

SECTIONAL PLAN

TYPE "X"

LADDER RUNG

(ABOVE)

1"

3'-0"

2'-2"

2'-2"

8'-0"

21"

2'-0"

4'-4"

8"

21"

3'-0"

10"

3'-0"

12"

2'-6" 11"

3'-0" 8"8"

11"

12"

2'-6"

16"

8"

3'-0"

60°

60°

8"

D/2

4'-4"

VA

RIE

SS

EW

ER DIA.

VA

RIE

S

VA

RIE

SV

ARIE

SS

EW

ER DIA.

7/8"

DIA.

1/8"

DIA.

4-03_B2.dgn 4-03/B2

2.

1.

NOTES:

4/08/2011Issue Date:

Detail No.:

NOT TO SCALE

MANHOLE BASES

DETAIL OF PRECAST RINGS FOR

(NON-AIRCRAFT LOADING)

48" DIA. & LARGER

42" DIA. & SMALLER

AA

UNUSED HOLES MUST BE FILLED.PLUG WITH NON-SHRINK MORTAR. RUNGS IN APPROPIATE HOLES &2" DIA. HOLES IN WALL. INSERT TYPE "X"

DIRECTLY UNDER CONE.SHALL ALWAYS BE PLACED 8" RING, WHEN USED,

8"

5 1/2 "

2 1/2 "

8"

8"

8"

"21

6

"21

2

2'-8

"16"

"2

11 "2

16

4'-0

"

BOLTS (RECESSED).LETTERS) FOUR 1/2 " DIA. HEX. HEAD "SANITARY SEWER" IN 2" HIGH CAPITAL (ON LID PROVIDE "STORM SEWER" OR FRAME AND COVER.

NO. 4-03/A6FOR SECTION A-A, SEE DETAIL

"2

16

"2

12

"2

113

"2

19

AN ALTERNATE.3'-4" IN HEIGHT MAY BE USED ASA SEPARATE ONE PIECE CONE WHERE THE 8" RING IS INDICATED,

NOTE "A"

USIN

G 8"

RIN

G

OR 3'-4"

CO

NE

NO

T U

SIN

G 8"

RIN

G

& U

SIN

G 2'-8"

CO

NE

IS LESS THAN 16"TOP RUNG IF THIS DIMENSIONWHEN 8" RING IS USED, OMIT

RING OR BRICK AND MORTARPRECAST CONCRETE ADJUSTMENT

AV

AIL

AB

LE U

PO

N R

EQ

UE

ST F

RO

M T

HE D

EP

AR

TM

EN

T O

F S

EW

ER

SA T

AB

UL

ATIO

N S

HO

WIN

G T

HE N

UM

BE

R O

F RIN

GS B

Y V

ARIO

US H

EIG

HTS IS

A F

LA

T M

AN

HO

LE T

OP M

AY B

E U

SE

D. F

OR D

ET

AIL

S S

EE S

HE

ET N

o. 4-0

3/A

7.

WH

ER

E T

HE S

EW

ER IS O

F S

UC

H SIZ

E O

R D

EP

TH W

HIC

H P

RE

CL

UD

ES T

HE U

SE O

F T

HE 2'-8"

OFFS

ET C

ON

E,

(GALVANIZED)AND NUTS 4 PER FRAME

" DIA. ANCHOR BOLTS85

TY

PE "X

" LA

DD

ER R

UN

GS O

N 1

6" C

EN

TE

RS

5"

4"4"

5"

9"

4" M

AX.

4"

2'-8

"

SE

E N

OT

E "A

"

4' DIA. FOR SEWER

3' DIA. FOR SEWER

"21

6

"21

14

16"

16"

"21

1

2'-0" 6"

10/03/2003

4-03/A54-03_A5.dgn

Issue Date:

Detail No.:

NOT TO SCALE

CHIC

AG

O

SE

WE

R

MATERIAL: CAST IRON

WEIGHT: 390 LBS.

A A

PROVIDE THREADED

PROVIDE 4 HOLES

AROUND FLANGE

FOR

ANCHOR BOLTS

FRAME

CHICAGO STANDARD MANHOLE

(FOR LANDSIDE USE ONLY)

PLAN

SECTION A-A

1"

1"

2'-0" DIA.

9"

1" 5"5" 1"

" DIA.85

"4

31

"2

13

"211

"213

"211

1"

"211

"213

"211

4-03_A8.dgn

"4

1

" 4

11

"4

11 21" DIA.

3'-0" DIA.

1"

Issue Date:

Detail No.:

NOT TO SCALE

MATERIAL: CAST IRON

WEIGHT: 152 LBS.

A A

(FOR LANDSIDE USE ONLY)

MANHOLES AND CATCH BASINS

STANDARD SOLID LID FOR

NOTES:

SEWER

SANITARY

1. LETTERING LABEL SHALL EITHER BE "SANITARY SEWER" OR "STORM SEWER"

SECURING LID TO FRAME.

A

A

SECTION A-A

PLAN

1"

1" 1" 5" 1" 1"

1"

"831

"831

"4

31

"4

1

"2

12

"212

4-03/A94-03_A9.dgn

11/15/2011

2. PROVIDE LID WITH FOUR " DIA. S.S. HEXAGON HEAD BOLTS (RECESSED) FOR 21

AS APPROPRIATE; TO 2 INCH HIGH LETTERS.

" DIA.4322

"161 1"16

11

"4

12

Issue Date:

Detail No.:

11/15/2011

4-03/A8

HOLES TO MATCH

FOUR 1#2" DIA. S.S.

HEXAGON HEAD BOLTS

ON LID

STORM SEWER DETAILS

CU-019

7

NOT TO SCALE

WATER MAIN

PROPOSED 12"

INV. PER PLANINV. PER PLAN

CU-019

2/3TYPE B MANHOLE

18"

MIN

FLOW

FLOW

FLOW

(FOR LANDSIDE USE ONLY)CDASTANDARD SOLID LID FOR MANHOLES AND CATCH BASINS

(FOR LANDSIDE USE ONLY)CDACHICAGO STANDARD MANHOLE FRAME

(NON-AIRCRAFT LOADING)CDADETAIL OF PRECAST RINGS FOR MANHOLE BASESCDATYPE "B" MANHOLES FOR SEWERS 36" DIA. AND 30" DIA.CDATYPE "B" MANHOLES FOR SEWERS 48" DIA. AND 42" DIA.CDABEDDING FOR PIPES AND SUBDRAINSSOURCE AGENCYSTANDARD DETAIL

SEWER TO REMAIN

EXISTING STORM

SEWER TO REMAIN

EXISTING STORM

STORM SEWER

PROPOSED RCP

CONTRACTOR TO VERIFY BEARING TO 3 FEET MINIMUM OR TO DEPTH AS DIRECTED BY THE COMMISSIONER.

UNDISTURBED GROUND OR PREPARED SUBGRADE MUST MEET A MINIMUM BEARING CAPACITY OF 1.5 TSF.

PROVIDE 6 INCHES TRENCH BACKFILL CUSHION BENEATH THE MANHOLE CONCRETE FOUNDATION.

CONTRACTOR TO VERIFY BEARING TO 3 FEET MINIMUM OR TO DEPTH AS DIRECTED BY THE COMMISSIONER.

UNDISTURBED GROUND OR PREPARED SUBGRADE MUST MEET A MINIMUM BEARING CAPACITY OF 1.5 TSF.

PROVIDE 6 INCHES TRENCH BACKFILL CUSHION BENEATH THE MANHOLE CONCRETE FOUNDATION.

STORM SEWER

DETAIL TO LOWER EXISTING




5 01/04/17 ISSUED FOR DPS REVIEW

6 08/04/17 ISSUED FOR DPS REVIEW REV 2

7 02/01/18 ISSUED FOR BID


8 02/28/18 ADDENDUM 1

RISER, INDICATED IN DETAILS 2/CU-019 AND 3/CU-019, ABOVE EXISTING STORM SEWER.

MANHOLE BOTTOM SECTION VERTICALLY TO AN ELEVATION AS NEEDED TO INSTALL EXISTING STORM SEWER. INSTALL

WHERE EXISTING STORM SEWER TO REMAIN IS GREATER THAN 36-INCH DIAMETER, CONTRACTOR SHALL EXTEND TYPE B 1.

NOTES:

MAYOR

1

DATE:

SHEET NO.

2345678

12345678

c:\users\e

beck\d

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wlocal\d

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19.d

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A A

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PROJECT NO.:

DESIGNED:

2/2

8/2

018

12:3

1:0

6 P

M

RAHM EMANUEL

GINGER S. EVANS

COMMISSIONER

REVISION

02/28/2018

PROJECT NAME:

BY:


DRAWN: CHECKED:

SHEET TITLE:


CITY OF CHICAGO



MLL DAK

H3068.15-00

EJB

8


BESSIE COLEMAN

8

G-002

SUMMARY OF QUANTITIES

IN CONJUNCTION WITH DSI ASSOCIATES.

SUMMARY OF QUANTITIES PREPARED BY PATRICK ENGINEERING 1.

NOTES:


6

5

4

3

2 07/27/16

10/19/16

11/18/16

01/04/17

08/04/17 ISSUED FOR DPS REVIEW REV 2

ISSUED FOR DPS REVIEW





02/28/188 ADDENDUM 1

MAYOR

1

DATE:

SHEET NO.

2345678

12345678

c:\users\e

beck\d

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ments\p

wlocal\d

ms00388\H

3068.1

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0-G

-002-Q

UA

N.d

gn

H

G

F

E

D

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B

A A

B

C

D

E

F

G

H

PROJECT NO.:

DESIGNED:

2/2

8/2

018

9:5

1:2

8 A

M

RAHM EMANUEL

GINGER S. EVANS

COMMISSIONER

REVISION

02/28/2018

PROJECT NAME:

BY:


DRAWN: CHECKED:

SHEET TITLE:


CITY OF CHICAGO



MLL DAK

H3068.15-00

EJB

8


BESSIE COLEMAN

8

8

8