Project No. 074-10 JHA No. 1

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Project No. 074-10 Job Hazard Analysis No. 1 Page 1 of 20

Completed ByBob Kunz

TitleCorporateSafety Director

Analysis DateJune 2010

ProjectYale UniversitySchool of Management

SuperintendentJon Vaslet

Position AnalyzedEntire Project

NewRevised

Date ApprovedJune 2010

Approved ByBob Kunz

Required Personal Protective Equipment : Hard hat, ANSI Z-87 rated safety spectacles (clear lenses are requiredinside buildings), face shields are required where hazard of flying objects, chemical splashes or radiant energy exists),work boots (hard-toe as needed), long trousers, and shirt with stitched collar and minimum of 4 sleeves. Handprotection is mandatory when there is a recognized hazard see OSHA 1910 Subpart I Appendix B (consult MSDS and

equipment / tool operating instructions for recommendations, for example). All workers must wear a Class II ANSIretro-reflective garment.

Note: Goggles are required for overhead, demolition, abatement, chemical handling work.

Equipment Required to Perform Work : Aerial equipment (i.e. articulating, boom lifts, ladders, supported andsuspended scaffold, scissor lifts), cranes, mobile equipment (e.g. excavation, material handling, delivery) portablegenerators, pumps, pumps, compressors, small hand tools (e.g. drills, saws, grinders, torches, powder actuated tools,putty knives, hammers, and screw drivers), etc.

Training Requirements: Dimeo Site Specific Safety Orientation, Supported and Suspended Scaffold (including aeriallift use), OSHA Construction 10-hour for all site workers, powder-actuated tool, and other as determined by job-specificcontractor JHA. The contractor shall designate an appropriate number of Competent Persons for the activities to beperformed on the captioned project see designation form in Contacts section of Site-Specific Safety & Loss ControlProgram.

Each subcontractor is to provide project-specific JHA (and in some cases, task-specific) five (5) days prior tobeginning work. Each subcontractor must designate a safety representative to perform a minimum of oneproject safety inspection per week see DCC Form No. 5.011A. The subcontractor foreman shall attend theweekly project safety commit tee meeting. The subcontractor shall provide a weekly safety meeting for theirworkforce.

This project has a NO SMOKING (designated location only) and NO HORSEPLAY policy .

Required permits and checklist include, confined space entry, crane and hoist use and lift plan (48 hrs prior to pick),excavation, hot work, lockout-tagout (LOTO), scaffold and steel erection checklist, guardrail or hole opening, roofaccess and off-shift work..

Activi ty Potential Hazards ProceduresPublic Safety General public entering the construction area The construction site will be controlled with a

fence fitted with scrim. Warning signage will beplaced at each gate and at appropriate intervalsalong the body of the fence.

Each gate will be closed or controlled tomitigate the possibility of non-constructionpersonnel from entering the site.

See DCC Procedure No. 5.010

Pedestrians struck by construction equipment. Subcontractors must provide a spotter orflagperson to facilitate safe access and egressfor delivery trucks and to ensure the safepassage of pedestrians.


Pedestrians struck by falling object; exposure to opticallight or airborne substances; or slip, trip or fall.

Subcontractors shall protect the public fromtheir operations occurring on, or adjacent tosite.

The subcontractors shall consider use of thefollowing means and method:

Work zone constructed in accordancewith MUTCD Part VI 2003 Edition

Safety Nets

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Activi ty Potential Hazards Procedures


Welding screensHousekeepingSignalman2

ndor 3

rdshift work

Worksite inspectionDust suppressionTethered toolsTarpsSecurement of stored materialsCovered walkways

Etc

The subcontractors shall not create anatmosphere or environment that may create ahazard or nuisance to any abutter to theproject.


Emergency Response Fire, explosion, building collapse, spills for example. An evacuation plan will be established,provided to site-workers during orientation andweekly safety meeting, posted on the sitebulletin board, and updated as required.

Note: Each subcontractor shall have asufficient amount of first aid supplies, and spillkits on-site to take a defensive position.

DCC provided fire extinguishers are intendedfor emergency use only not for hot work firewatch.

Subcontractors shall provide support withoutdelay or concern for reimbursement theresponse that is appropriate and necessary tomitigate all imminent danger situations that mayarise during the execution of their work.

It is understood that maintaining, creating, orallowing access to the entire length of thetunnel shall be given priority over any otheroperational activity in the event of an imminentdanger situation.

See DCC Site Specific Safety & Loss ControlProgram tab no.1 CONTACTS, and no. 2 EVACUATION, and DCC Policy No. 5.508.

Controlled Substances and Alcohol:

-possession-use-under the influence

Creates unnecessary risks of accidents, theft andviolence

Dimeo is committed to providing a workplacethat has a level of awareness and workereducation that is consistent with the DRUGFREE WORKPLACE ACT OF 1988.

The use, possession and working under theinfluence of controlled substances and / oralcohol create unnecessary risk and will not betolerated.

See DCC Procedure no. 5.002, 5.004, 5.005and 5.007, and Program no. 5.109.

Harassment Hostile work environment Dimeo will not tolerate sexual harassment or

discrimination of any kind. Do not stare, whistleor otherwise create an uncomfortable workenvironment.

The posting of materials (snap-on toolcalendars or air fresheners depicting a scantlyclothed person, for example) can create anuncomfortable work environment. Thesematerials must be promptly removed whendiscovered.

The use of foul language, clothing with

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offensive language, derogatory or slangremarks will not be tolerated.

See DCC Procedure no. 5.010

Confined / Enclosed Space Work (inor around):

-manholes-metering / Test pits-HVAC equipment-tunnels-dewatering equipment-etc.

Hazardous atmosphere:

-oxygen deficient-flammable-toxic

Stored Energy:

-electric-mechanical-pressure

Engulfment / Entrapment

Temperature Extremes

Etc.

The subcontractor shall designate and identifya competent person for Confined / EnclosedSpace activity. All employees assigned to thisactivity must be properly trained.

The subcontractor shall contact local firedepartment to plan for Confined / EnclosedSpace work. It is essential that capabilities oflocal responders be identified.

Air monitoring, mechanical air exchange,personal fall arrest equipment, rescueequipment, protective clothing, ladder andadditional personnel may be necessary.

Control stored energy, and review MSDS andequipment manuals for warnings concerninguse of product(s) and equipment in confined orenclosed space, for example:

- Flammable and / or toxic vapors can quicklyaccumulate and create a flammable or lethal

atmosphere in confined or enclosed spaces;

- Carbon monoxide generated by a combustionor diesel engine can quickly accumulate andbecome lethal in a confined or enclosed space.The subcontractor shall ensure that COemissions from equipment do not exceed theEPA NAAQS standard beyond the limits of theproject, nor 35 PPM within the limits of theproject.

- Subcontractors shall take whatever measuresare necessary to ensure that the public and siteworkers are not exposed to atmospherescontaining hazardous vapors.

- Material can become bridged in a cement silo

and entrap workers entering space, if propersafe guards are not taken, for example.

- Equipment can be accidentally started withworker inside, if proper safeguards are nottaken.

Note: Compressed air shall not be utilized forto mechanically exchange air.

Develop t ask specific JHA and prepare andsubmit DCC Confined Space Pre-EntryChecklist Form No. 5.103A.

See DCC Procedure No. 5.007, Policy No.5.051 and Program No. 5.103 and 5.107.

Hazardous Substances: Inhalation of airborne dust (respirable and total) Subcontractors shall erect and maintain dustbarriers prior to start of demolition work.

Open building (e.g. exterior doors / windows,walls) when undertaking general demolition, ifpossible. Consider the use of mechanicventilation to foster air exchange.

The exhaust air shall not create a hazard to siteworkers or the public.

No dry cutting of any CMU, STONE, BRICK,

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and CONCRETE will be allowed. All cuts will bedone by using wet saws or equipment fittedwith HEPA vacuum attachments.

Place mortar mixing operation in, or create anarea that will minimize the amount of drycement that becomes entrained by wind.

Use water spray to keep dust under controlwhere mobile equipment is operating.

When sanding or grinding (wood, plaster,concrete, etc) engineering controls (HEPAvacuum, for example) are preferred overrespirators to protect workers.

See DCC Procedures No. 5.006 and 5.010,and Policy No. 5.070 and 5.072.

Inhalation of toxic vapors Read all MSDS sheets, and labels, all MSDSmust be filed on site with DIMEO.

Contact DCC prior to work near air intakeducts. Combustible or toxic vapors can travelbeyond the work area via the air handlingsystem.

Wear appropriate PPE and label secondarycontainers. Keep chemicals in secured area.Use Engineering controls where possible.

Mobile equipment operating within the tunneland foundation area must be equipment withTier 3 engines and emission scrubbers and / orcatalytic convertors. The State of Ct anti-idlingregulations shall be observed.

Use mechanical ventilation to induce airexchange see Confined / Enclosed WorkSpace above.

See DCC Procedure No. 5.006 and 5.010, andPolicy No. 5.070 and 5.072.

Fire hazards All combustible chemicals (e.g. solvents,strippers) are to be stored in a metal fire ratedcabinet outside of the building.

All chemical impacted rags or towels must besegregated from ordinary combustible wasteand removed from site daily.

See DCC Policy No. 5.057.

Contact with chemical Read all MSDS sheets, and labels, all MSDSmust be filed on site with DIMEO.

Portland and Masonry cement can causechemical burns proper PPE shall be worn tomitigate this hazard.

Eye wash stations are recommended.

Wear appropriate PPE and label secondarycontainers. Keep chemicals in secured area.Use Engineering controls where possible.

Chemicals may not be stored within anybuilding without the prior consent of DCC.

Barricade area around application area toprevent access to potential overspray area.

See DCC Policy No. 5.070

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Housekeeping All abated material is to be disposed of properlylater than the end of each shift.

See DCC Procedure No. 5.006 and Policy No.5.059 and 5.062.

Mobile Equipment Operation / R&M:

-delivery trucks-material handling-excavation

Struck by equipment Equipment with obstructed view to rear must beequipped with an automatic reverse activatedalarm audible above the surrounding noiselevel. Bi-directional equipment must haveaudible alarm.

The OEM equipment provided on each piece ofequipment must be operational (e.g. lights,horn, windshield wipers, safety devices). Arear view mirror and side view mirrors shall beprovided.

Swing radius barricades shall be establishedwith three decals affixed to each end andcenter of the counterweight.

Each spotter or flagperson must wear an ANSIClass II [class III for night operations] retro-reflective garment.

The use of hand signals alone is not permitted.

Ground personnel shall maintain eye contactwith equipment operators and a respectfuldistance from equipment while working andwalking near mobile equipment.

Work zones shall be established to create aseparation between active and inactive workareas

See DCC Policy No. 5.052 and 5.068.

Upset equipment Seatbelts must be provided and worn on eachpiece of mobile equipment that is equipped withseatbelts and / or a roll-over protectivestructure (ROPS). No ROPS shall be removedfrom a machine without a plan designed by aprofessional engineer. The plan must bereviewed by DCC.

A physical berm(s) must be constructed alongelevated ramps or roadways.

Each dump site must be provided with a stoplog, bumper block or curb to prevent overtravel. This safety device shall be at least axleheight.

The dumpsite must be periodically inspected bya competent person to ensure that it has notbeen undermined or soil too soft.

Dump trucks shall not dump side by side,unless separated by at least the length of thetruck.

Unqualified operator Equipment may only be operated by a properlyqualified (and licensed if required by

jurisdiction) worker.

Hazardous atmosphere Equipment (combustion engine) shall not beallowed to idle for longer than 5 minutes.

The contractor shall monitor equipmentemissions utilizing appropriate data loggingcapable instruments. The instrument(s) shallbe utilized by a qualified person who has beentrained to utilize such instrument(s) and react in

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an appropriate manner to abate potentialhazards. A monitoring report shall be preparedand provided to DCC on a daily basis.

Mobile equipment operating within the tunneland foundation area must be equipment withTier 3 engines and emission scrubbers and / orcatalytic convertors. The State of Ct anti-idlingregulations shall be observed.

See DCC Procedure No. 5.006.

Fall from equipment Equipment (e.g. buckets, forks) must not beused to convey personnel unless designed todo so.

Workers (truck drivers and placementpersonnel) shall not climb up or on deliverychutes.

Personnel may not stand on or in dump bodieswhile being loaded.

Personnel may not ride in truck beds or onsaddle tanks, or exterior ladders.

Electrocution / Explosion See Electrical section.

Unstable ground Equipment ground pressure rating must becompared with ground (paved and unpaved) /floor (slab on grade and elevated) load ratings,prior to mobilization of equipment.

The use of mud mats and outrigger cribbing willdecrease ground pressure imposed byequipment.

The existence of subterrarean features shall beidentified to determine ground stability.

A competent person must inspect excavations,embankments, and stockpiled material toensure that stability of equipment operatingnear or on those areas is not adverselyimpacted.

Spills (fuel, lubricating fluids, hydraulic fluids, anti-freeze,etc)

The operator must maintain an adequatesupply of spill response materials including,pads, booms and drums to ensure that adefensive position is immediately taken.

The impacted area must be cleaned by theoperator and an incident closure reportprovided to DCC.

The subcontractor shall retrofit equipment withbiodegradable hydraulic oil while perform anysite enabling work (i.e. in and around thetunnel)

The operator (responsible party) must contactthe local jurisdiction regarding the incident.

See DCC Procedure No. 5.006 and Policy No.5.060 and 5.062.

Noise The mobile equipment shall be fitted withexhaust muffler.

Equipment may not be started prior to 7:00 AM.

Equipment may not be staged outside theproject prior to 7:00 AM without the priorconsent of DCC.

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Excavation / Backfill:

-utility-underpining-structural concrete / masonry-pile driving-mechanical excavation or demolition-etc.

Soil collapse

Underground utility damage

The subcontractor shall identify the name of thecompetent person that has been designated toconduct the excavation related (excavation /backfill / utility / formwork) activity.

Provide DCC with CBYD call ticket ID numberand start time. DCC requires 30 day re-markrequests.

The subcontractor shall provide DCC with the

engineering data that has been prepared for allearth retention and / or support systems thatwill be utilized on the project. The data must beprepared by a PE.

See DCC Policy No. 5.054 and Form 5.054A,and a job specific JHA.

Vibration The subcontractor shall monitor vibrationcreated by vibratory compaction, sheet or piledriving, blasting, and/or mechanical demolition;rock excavation shall be monitored with aseismograph. Additional measures may berequired depending upon the sitespecifications.

Levels shall be maintained within the limits

established by contract or the USBM ReportNo. RI 8507, or project specifications,whichever is more conservative.

Open hole Use the MUTCD Part VI 2003 Edition toestablish traffic, pedestrian, bicyclist controlplan.

Use of road plate must be done in accordancewith a plan prepared by a qualified person.

The excavation shall be protected to preventpedestrians, workers and equipment fromentering the open hole.

(Note: Obtain local municipal excavationpermit, if required)

Structure collapse / failure A qualified person must assess the structuralintegrity of structures that area adjacent to, orabove an excavation prior to the start of work.

Structure(s) must be properly supported duringthe backfill process. It may be necessary tobackfill in lifts and to compact the lifts prior tothe continuation of backfill operation.

Consequently, the engineer of record or ownerof the facility must be contacted prior tobackfilling so that the proper procedure can beidentified.

Elevated Work:

-all trades

Fall from structure 100% fall protection is required when workersare exposed to a fall of 6or greater,irrespective of their trade or activity.

For example: Persons loading and unloadingmaterials / supplies / demolition debris from ascaffold platform must be tied off while theplatform gate is open.

A suitable guardrail system, personal fall arrestsystem (5000 lb anchor point per person,anchor attachment, lifeline, and full-bodyharness), and secured adequately constructedcovers are considered acceptable means ofprotecting elevated workers (Note: PFAS are

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typically rated for 310 lbs inclusive of tools andequipment).

Do not terminate a lifeline with a knot. Atermination plate or thimble eye and snaphookshall be utilized.

Use a double lanyard to maintain 100% contactwith an anchor point.

Do not tie a lanyard back onto itself unless ithas been designed for that purpose, forexample Miller BackBiter.

Evaluate the total fall distance that a worker isexposed see guide below:

Each subcontractor exposed to falls mustprepare a job-specific JHA that describes thefall protection system that will be utilized.

The subcontractor shall obtain a Guardrail andFloor / Roof Opening Permit prior to removingguardrails or covers, and prior to creatingholes.

Subcontractors shall prepare a rescue plan.

See DCC Policy No. 5.056 for guidance.

Falling objects Subcontractors shall provide any control

necessary to ensure that falling objects do notrepresent a hazard to workers or the public.The following control may be utilized:

Covered walkways to and from thebuilding egress points

NetsMesh set along perimeter and interiorguardrails

ToeboardsMaterial stored +6 from floor edge, or+15 from roof edge

Tethered toolsEtc

Fire Prevention / Protection:

-demolition-make safe work-excavation

Arc welding, uncontrolled sparks, open flame, heattransference.

Note: Fire / Explosions can occur during welding, cutting(oxy/acetylene or abrasive blade), grinding operations, orin the presence of an open flame

Subcontractors shall provide all equipment andfire watches and take all precautions necessaryto eliminate the possibility of a fire / explosion.

Obtain hot work permit from localjurisdiction, owner, and DCC prior t obeginning work . The hot work permit mustbe updated as may be necessary.

Ensure that equipment (gauges, hoses, fireextinguishers, tanks in secured and uprightposition) is duty ready condition. Inventory thearea for combustibles (e.g. liquid, lint, dust, oil,or pipes / containers / duct work that may havepreviously contained combustible material).

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Do not bring compressed gas bottles / tanksinto a confined or enclosed space. Rememberto turn the bottles off, remove the hoses fromconfined or enclosed space, and to purge thefuel from hoses when finished at break, atlunch time and at the end of the shift.

Fuel bottles (empty or full) may not be inside ofthe building or job boxes, at anytime, except for

those in use. The stored bottles must havecaps in place.

Combustibles like architectural form liners,blankets, and wood forms will ignite whenexposed to hot work (arc welding, uncontrolledsparks, open flame, heat transference, forexample).

Only fire retardant tarps shall be utilized. Thetarp shall have fire retardant stamped on thematerial so that it easily identifiable.

Note: Temporary heating devices shall not beutilized until DCC has reviewed the applicationand coordinated same with project

specifications.

See DCC HOT WORK PERMIT and Policy No.5.057 and 5.077.

Poor housekeeping Maintain and review Material Safety DataSheets (MSDS). Provide a copy of MSDSlisting and MSDS to DCC.

Wear appropriate PPE and label secondarycontainers. Keep chemicals in secured area.

Chemicals may not be stored within anybuilding without the prior consent of DCC.

Use of these materials around building airintake units must be coordinated with DCC,prior to the start of work.

KEEP FIRE HYDRANTS (10 on either side)and EXTINGUISHERS clear of stored / stagedmaterial.

Compressed gas cylinders must be storedoutside of the building envelope in an uprightand secured position with valve stem protectingcaps in place. The fuel gases must beseparated from oxygen by a distance of 20 orby a 5 tall 1 hr rated fire wall. The cylindersshall be protected from accidental contact bymobile equipment.

See DCC Policy No. 5.050, 5.507, 5.061,5.063, and 5.077.

Collateral structures Work impeding tunnel access will requiredeliberate planning with abutters and the City ofNew Haven Fire Department.

Subcontractors shall cooperate fully with thefire prevention / protection plan that isdeveloped for this work activity

Crane and Material Hoisting:

-crane-telescopic handler-etc.

Upset hoisting device

Falling material

Struck by

Equipment operators must be properly qualifiedand license (if required by jurisdiction).

If outriggers are utilized, employ them per theOEM operators guide. Typically, the outriggers

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must be fully extended with the rubber off theground. The outrigger pads must beindependently cribbed. The amount of cribbingis determined by this rule-of-thumb: cranescapacity / 5 = # of sq ft required under eachoutrigger pad. Therefore, a 35T hydrauliccrane would require 7 sq ft of adequately sizedcribbing under each outrigger pad. Eachoutrigger shall be cribbed so that it can take theentire weight of the crane.

Make certain that supporting surfaces (i.e.bridges, concrete slabs, etc) can withstand themaximum intended load (weight of machineplus load)

Check for subterranean defects (vaults,drainage pipes, etc) and stability of adjacentearth retention and / or support systems (slope,shoring, sheet, etc.).

Coordination and scheduling is important, dueto potential need to relocate personnel withinan occupied structure, block or restrict buildingegress points, and develop and implement acontrol traffic plan, for example.

Barricade areas surrounding these areas toprevent pedestrians and workers from beingstruck by falling material.

Fuel must be emptied (diesel, gasoline) orremoved (compressed gas cylinder) frommobile equipment prior to hoisting over abuilding.

Daily inspections shall be completed anddocumented. Each defect affecting the safeoperation of the equipment must be correctedprior to the equipment being placed back intoservice. The equipment must be tagged out-of-service until it has been properly repaired.

Cranes must be inspected annually by aqualified third party. The annual inspectioncertification shall be on the crane.

(Note: Hoists cant be modified without thewritten consent of the equipmentmanufacturer.)

Calculated the weight of the load, includingrigging running rope and blocks.

Do not exceed capacity of hoist and / or rigging.Use tag lines to control load. Consider the useof a double choke hitch to maintain 360degrees of friction on loads such as a bundle ofscaffold cross bracing, for example.

Winches shall not be utilized to hoist materials.Base mounted drum hoists shall be utilized inaccordance with ANSI standards.

Cranes operating above 200 shall obtainauthority from the FAA, and or any local

jurisdiction that has authority over suchequipment. The crane shall be equipped withFAA standard red light(s) and flag.

Subcontractors shall provide all necessary FAA

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permits and markings at no cost.

Do not attach rigging to forks.

See DCC Policy No. 5.068, 5.069, 5.073 andCRANE USE PERMIT (Must be received 48hours, or 2 business days prior to tentative liftdate).

Electrocution / Explosion See Electrical section.

Small Tools and Equipment:

-nail guns-powder actuated tools-saws-drills-chipping Guns-pneumatic tools-painting-pressure / steam cleaningequipment-waterproofing-etc.

Personnel injury:

-unqualified operator-adjacent worker(s)-pedestrian

PPE and original equipment manufacturer(OEM) guards shall be utilized and in place guards shall not be cheated.

Barricade work area.

Knowledge of material handled and capabilitiesof equipment.

Any person handling a small tool shall betrained how to use the equipment prior to use.

Powder actuated tool operators shall be trainedby a qualified person. The certificate of trainingshall be on their person.

The tool user shall also be familiar with how tosafe guard the tool if it malfunctions. This mayinclude clearing or repairing the tool, as well.

Follow OEM instructions for cleaning / clearingpressurized paint spray equipment.

Follow OEM instructions for cleaning / clearingmortar mixer and silo screw conveyors, forexample Remember to lockout and tagoutequipment prior to repair and maintenance.

Make certain that RPM ratings of drill bits, sawblades, cutting and grinding wheels arecompatible with tool.

Specify tool adjustments.


Material Handling:

-sprinkler-electrical-HVAC-ceiling-excavation

Cut hands and fingers Wear gloves appropriate for the activity.

Persons are to wear gloves when cutting metallath/ stud materials

Wear the appropriate gloves [cut / punctureresistant / anti-vibration] and long sleeve shirtsfor protection when utilizing tools and handlingrough, sharp, or puncturing materials.The trade contractors JHA must address handprotection.


Materials falling from conveyer

Caught in unguarded rollers, chains, and gears

Physical overhead protection must be installed

where the conveyor crosses over an activedoorway or walkway.

Skirts should be utilized to minimize spillage.

All moving rollers (return and idler), pulleys (tail,gravity and head), exposed belt and drivegears, chains and belts shall be guarded. Stopcords shall not be used exclusively. Lockout /Tagout (LOTO) procedures shall be establishedand utilized during maintenance and repair of

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equipment. The conveyor belt shall not beridden or walk upon by any person.

RI requires a licensed operator.

See DCC Policy no. 5.066 and 5.071.

Falling / flying objects Barricade area surrounding work when hoistingequipment over head.

Maintain good housekeeping to preventmaterial from falling from elevated surface oruneven ground condition.

Torch cutting can cause oxidized metal andconcrete to splatter and spall.

Wear appropriate PPE (listed above), includingwithout limitation, welding gloves and goggles(and face shield when welding). Thisrequirement extends to helpers.

Must wear a full face shield in addition to safetythe requisite safety glasses when chipping orsaw cutting.

< 20 material drop barricade with red danger

tape to prevent pedestrians / workers formbeing struck by debris. Due not compromisean active doorway / walkway w/o priorcoordination with DCC.

20 material drop use a debris chute into adumpster. The dumpster needs to bemaintained to ensure that door is closed andthe material not overfilling.

See DCC Policy 5.062.

Struck by cargo from trailer Ensure truck is on firm level ground. Chock thewheels. Stand to side of chain binders, ornylon web ratchet binders, and inspect the loadfor shifting or (and remove) loose objects priorto releasing. Do not stand between loadedtrailer and material handling equipment. Use aladder to climb onto the trailer. Access theloaded unsecured cargo from behind, this willminimize any possibility that a worker willbecome entrapped.

Ensure that the cargo is secured to the truck ormobile equipment that may be positioning itwithin the project limits.

Physical Hazards:

-all trades

Slip / fall on same elevation A Competent Person must conduct dailyinspections and ensure that employees adhereto good housekeeping practices, for example:

Keep oil pans in place when cutting machinesare in use. This will protect existing flooringfrom oils, and mitigate the likelihood of workerexposure injury.

Maintain all conduits, pipes on racks, tominimize the hazard of tripping, keep all pipesagainst walls out of walking areas.

Maintain control of concrete slurry generatedduring wet saw cutting. The slurry may createa slippery underfoot condition due tosuspended fines and / or icing conditions.

Mix plaster in a designated areas, to minimizewater spillage through out job clean this area

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a minimum of once per shift.

Protruding rebar needs to be protected tomitigate impalement or laceration hazard.

Locate extension cords, fuel gas, air lines, andwelding leads so that they dont become atripping hazard.

Extreme care must be taken by workers

entering and moving about the construction sitefollowing a deep frost, ice or snow storm toavoid slipping and falling. Workers shouldprepare the affected work area with friction orice melt material prior to beginning work. Donot take long strides walk with toes pointedoutward.

See DCC Procedure No. 5.004, 5.005 andPolicy No. 5.062.

Excessive noise exposure (continuous and impact) Hearing protection may be required to reduceworker exposure to the OSHA PEL see chartbelow:

Noise can also be controlled (not eliminated)with: quieter, modified (with consent of OEM),and well maintained equipment, barriers /baffles, and work activity schedules (whenpossible).

The subcontractor shall perform their work sothat it is not in conflict with any local

jurisdictional ordinances, rules, regulations,policies.

See DCC Policy No. 5.061

Stored energy

Note: Serious Injury can occur when cutting steam lines,electrical conduit, and water lines (potable, fire protection,waste) without first de-energizing the system.

Potential sources of stored energy must beidentified and isolated before performing anydemolition.

Disconnect power cords prior to repair electrictools or equipment. Pull the spark wire prior torepairing combustion equipment. Turn air linesoff, run the air out of tools or equipment, thendisconnect the air line from source prior torepair air tools or equipment. Reviewmanufacturers instruction prior to repairing ormaintaining tools and equipment.

Electrical contractors must follow NFPA 70Eguidelines.

Obtain necessary authorization from owner andDCC prior to starting work.


Optical radiation Subcontractors shall protect workers and thepublic from optical energy.

Do not look directly into or at laser equipment.

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Turn laser equipment off when not in use.Wear eye protection if required.

Do not work with, or look at welding or cuttingactivity without proper eye and face protection,for example: cutting goggles (and opaque faceshield when welding). This requirementextends to helpers.


Inadequate lighting Subcontractors shall provide their own tasklighting.

Install adequate temporary lighting as required.Ensure that the lighting is maintained in safeoperational condition.

The lighting must be on a separate circuit. Thebulbs must be shielded to prevent accidentalcontact by debris and small hand tools, forexample.

Vibration

The operation of vibration generating tools (chipping gunsand hammer drills, for example) can create operatorfatigue.

Ensure that small tools are in proper workingorder.

The use of vibration isolation gloves will greatlyreduce the physiological affects of this

equipment.


Extreme environment:

-heat stress

Drink water regularly (every hour), avoid hotfood and drink, and drinks containing caffeine.

Avoid wearing tight fitting or colored clothing.

Provide hot weather (exhaustion, cramps,stress) awareness training to all workersexposed to hot environments.


-cold stress

Layer clothing and cover exposed skin.

Wear insulated clothing and footwear.

Provide cold weather (frostbit and hypothermia

awareness training to all workers exposed tocold environments.


-wind

See the Force of Wind for Severe Velocities below:

Ensure that mobile equipment, hoistingoperations, ladders, scaffold (includingenclosures), and aerial lifts are designed tooperate in the anticipated conditions. Halt anyoperation that may be adversely impacted.

Secure tarps, materials (decking, plywood,Styrofoam), and form panel, for example toprevent overturning, flying or upset.

Erection of trusses and other structures shouldbe planned in conjunction with the extendedlocal weather forecast to ensure that anadequate weather window exists.

A severe weather plan shall be provided, whichaddresses conditions requiring the workcessation. The plan shall address as aminimum: lightning, wind, snow, fog.

Crushed hands / feet Keep hands and feet from underneath elevatedmaterial - use blocking / cribbing and jackstands to support material, and tag lines / pushsticks to control elevated material.

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PPE like hard toe work boots can also mitigatea foot crushing injury, for example.

Utilize adequately sized dunnage underequipment, materials and supplies to mitigatepossible crushing injuries.

Ergonomics Cut material into sizes that is manageable foravailable manpower and material handlingequipment to safely handle. (Note: Usestretching and proper lifting techniques.)

Use hoisting equipment when that is possible.

If that is not possible, break down that load intoits smallest components to limit the amount ofweight that is physically handled, or ask forassistance form a co-worker.

Use the proper lifting techniques:

Test load: Is it frozen to ground? Is it toheavy for one person?

Plan the move walk the path first

Keep the load close to your body

Keep your back straight

Turn feet outward and push buttocks out

Bend knees Keep your chin up, and

Breathe out as you lift

Structural Steel Work:

-new

Struck by falling objectStructure collapseSlip / trip and fall

Pre-activity meeting must be held with DCCobtain certification (anchor bolts / 75% concretecuring) and site layout.

The skybridge will be erected off-site andinstallation performed in conjunction withauthority provided by the City of New Havenand DCC.

The subcontractor shall provide DCC with awritten Site-Specific Steel Erection Plan, whichincludes:

-site layout (crane and material placement)-crane permit-hoisting and rigging-structural steel assembly-column anchorage-beams and columns-open web steel joists-systems engineered metal buildings-falling object protection-fall protection, and-training.

JHA required for each task.

Rigging must not be utilized as part of a PFAS.

See DCC Policy No 5.076 and Crane Permit.

Scaffolds

-baker-supported-suspended-etc

Competent person

-erection-use-dismantling

The subcontractor shall ensure that allpersonnel working (erecting, dismantling, using,maintaining, repairing) on scaffold are properlytrained.

Ensure that all scaffolding equipment has beeninspected and that it meets or exceeds OSHAstandard.

At least one competent person shall be

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designated by each subcontractor erecting,dismantling or using scaffold system. Acompetent person shall be assigned to workwith each scaffold operation.

At least one competent person shall inspect thescaffold prior to use each shift. The inspectionshall be recorded on a scaffold inspection taglocated at each access point.

See DCC Scaffold Checklist and Policy no.5.075.

Multi-trade Subcontractors shall attend whatevercoordination and training sessions that may berequired as a result of multi-trade scaffoldutilization.

Subcontractors shall accept full responsibilityas users when on scaffold. This responsibilityincludes all provisions that OSHA hasestablished for scaffold use and inspection.

And shall provide whatever PPE and fallprotection equipment may be required whileutilizing the equipment.

Subcontractors shall ground mast climbing

scaffold when winds exceed 29 mph and at theend of the shift on Friday.

Falling objects

-scaffold components-materials-supplies-debris

3.5 toe-boards shall be installed andmaintained on each scaffold platform.

Mesh is required between the handrail and toe-boards to further minimize the possibility offalling objects.

Materials and supplies shall not be allowed toaccumulate on the platform higher than the toe-board.

When bumping planks up or down, for examplethe trade contractor must make sure that allsafety precautions are taken. Subcontractorsmust close off ends of staging with properguard rails, and toe boards when planks areremoved.

Scaffolding failure Scaffolds shall be designed by a professionalengineer and shall be constructed and loadedin accordance with that design.

A scaffold plan must be prepared by a qualifiedperson and submitted to DCC prior to erection.

The scaffold system must be erected anddismantled in accordance with the plans and /or instructions prepared by the qualified person.

Scaffold must be properly inspected by eachtrade contractor utilizing the system. Thefollowing inspection tags shall be utilized:

GREEN SafeYELLOW Conditional UseRED Unsafe Do Not Use

Supported scaffoldThe supporting surface must be capable ofsupporting the dead load and 4 times theintended load applied or transmitted to it (liveload). A qualified person shall determine thatthe supporting surface is adequate, forexample: a distribution plate may need to be

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installed on an elevated concrete floor in orderto distribute the dead and live loads of theerected scaffold system.

Suspended scaffoldDirect connections to roofs and floors, andcounterweights used to balance adjustablesuspension scaffolds, shall be capable ofresisting at least 4 times the tipping momentimposed by the scaffold operating at the rated

load of the hoist, or 1.5 (minimum) times thetipping moment imposed by the scaffoldoperating at the stall load of the hoist,whichever is greater.

Each suspension rope, including connectinghardware, used on adjustable suspensionscaffolds shall be capable of supporting,without failure, at least 6 times the maximumintended load applied or transmitted to thatrope with the scaffold operating at either therated load of the hoist, or 2 (minimum) timesthe stall load of the hoist, whichever is greater.

The stall load of any scaffold hoist shall notexceed 3 times its rated load.

Suspended scaffold platforms shall begrounded or secured when not in use,especially in extreme weather conditions.

Wire rope clips and thimbles may be utilized toform eyes to terminate tiebacks, but only if theyare appropriately sized, installed, and inspected(visually and physically torqued).

Note: Suspended scaffold systems must haveinspection tags at anchor points and platform.

Fall protection The contractor must prepare and submit a fallprotection plan to DCC.

The activity is controlled by a 6 fall protectionrule.

Electrical Electrical contact Disconnect all equipment, and use job specificlockout / tagout (LOTO) procedures. Use of allproper PPE (NFPA 70E protocol isencouraged), in conjunction with non-conductive barriers, equipment, and tools.

Each contractor performing work (tie-in, cut-out,or troubleshooting) on energized (irrespectiveof voltage) systems should submit their projectspecific (LOTO) procedure to DCC, so thatDCC can coordinate work with owners, ifrequired.

Only qualified workers may perform this work.

Live conductors shall be properly covered

duct tape and cardboard may not be utilized tocover junction boxes or openings in breakercabinet, for example.

See DCC Policy no. 5.053 and 5.066.

Electrocution / explosion Underground utility locations must be markedprior to the start of work. Each undergroundutility must first be located by non-mechanicalmeans when the proposed excavation islocated within safety envelope of the utility.

No equipment shall operated closer than 10 to

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overhead power lines

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Side load capacity of the rails is a function ofworking length and pitch, as follows:

2 x 4 if working length is 12 and pitch.2 x 6 if working length is >12 and pitch.

Note: A job built wooden ladder shall notexceed 24 feet in length.

Manufactured ladders:

-portable-fixed

Portable ladders shall be rated type 1A orgreater.

Ensure that each manufactured portable ladderhas all required decals.

Refer to DCC Policy No. 5.065.

Stairway

-improper maintenance-improper temporary construction

Temporary stairs must be installed at 30 to 50degrees from the horizontal. Stairway landingsmust be 22 wide and 30 deep at every 12 orless of vertical rise.

Stairway parts must be free of dangerousprojections, such as protruding nails andscrews.

Stairways with more than 3 treads or 30 inheight must have hand rails.

The open side(s) of stairways must beequipped with a handrail / midrail, whilestairways with walls on both sides shall beequipped with only a handrail. The handrailsurfaced to prevent injury and clothing fromsnagging. The handrail have 3 of clear spacefrom the wall or other objects and shall becapable of withstanding 200 lbs of force whenapplied within 2 of the top edge in anydownward or outward direction, at any pointalong the top of the handrail.

Midrails when used shall be located midwaybetween the top of the handrail and the tread.

Screen material and intermediate verticalmembers can be used in lieu of midrails wheninstalled in accordance with OSHA regulations.

The height of handrail must be between 36and 37 above the height of the stairway tread.

The treads shall be secured and extend the fullwidth of the stairway. The tread depth and riserheight of temporary stairs shall not deviate bymore than in any system.

Landings must extend and additional 20beyond the swing of any door or gate.

The full width and depth of metal pan landingsand tread shall be temporarily filled with wood

or other solid material.

Correct slippery conditions immediately.

Stairways shall be kept free of debris and otherobstructions.

Aerial / Scissor Lifts Defective equipment The competent person (operator) must conducta pre-shift inspection of the lifts tires, fluidlevels, outriggers (if provided), guardrails,gates, operators manual, and to be certain thatthe key is in ground controls, for example.

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Contractors shall be certain the lifts have hadall periodic inspections recommended by themanufacturer. The equipment should bedelivered to site ready for use with adocumented inspection by the rental house.

Contractors shall provide DCC with evidence ofcompetency for each aerial lift operator.

Unsafe worksites Set traffic control in accordance with theMUTCD Part VI, if required.

Inspect the site for hazards, such as, holes,drop-offs, bumps, debris, overhead power linesand other obstructions.

The manufacturer may require that outriggersbe fully deployed. Be certain that there isadequate space and bearing for all of the padsto be fully deployed and supported.

Barricade the work area underneath the aeriallift, if required.

Look for overhead power lines see Electricalsection.

Improper use Always close lift platform chains or gate.

Keep both feet on floor of platform.

Do not lean over guardrail.

Transfers by personnel from an aerial / scissorlift to an elevated structure may only beundertaken with the written approval andconditions set forth by the equipmentmanufacturer.

Do not modify equipment without the writtenconsent of the manufacturer.

Extreme weather, such as, wind can drasticallyeffect the safe operation of aerial lift equipment

check the manufacturers manual forlimitations of use.

Documents

Project No. 074-10 JHA No. 1