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Rehabilitation of 188th Street over Grand Central Parkway

PIN: X051.63.121 Contract #: D262985Deck Replacement

188th Street

188th Street

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October 2015

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188th Street Bridge over Grand Central Parkway

Elevation(Looking West)

Top of Bridge(Looking North)

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Existing Bridge Cross-Section - (Looking North)

• Built in 1963• 73’ wide x 193’ long• 4 simple spans• 12 steel girders• 2 lanes in each direction

• 2 - 10’ wide sidewalks

• Has two (2) watermains under the southbound sidewalk

• Carries multiple electrical and telephone conduits

Project Goal: Replace the deteriorated concrete deck with a new deck which will extend the useful life of the structure for 30+ years

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Accelerated Bridge Deck Construction

Pre-Cast Deck Panel The accelerated bridge deck construction uses pre-cast deck

panels (cast off site) which are placed on the bridge over four

weekends during the summer, when traffic on the bridge is reduced.

One sidewalk will be open to pedestrians at all times.

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Accelerated Bridge Deck Construction(Stage 1)

3 MONTH DURATION

WORK ZONE

188TH STREET

SIDEWALK OPEN

2 LANES NORTHBOUND

2 LANES SOUTHBOUND

SIDEWALK CLOSED

Work will include bearing replacement, substructure repairs, steel repairs and Verizon utility repairs as well as the installation of the East sidewalk panels.

The west sidewalk will remain open to pedestrians. All four (4) lanes will remain open to traffic. Temporary off-peak lane

closures.

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Work will include replacement and installation of roadway deck panels in the Northbound direction.

The West sidewalk will remain open and traffic will be reduced to one lay in each direction during the two weekend closure periods. Lane reduction hours are from Friday 10 PM thru Monday 5 AM.

All four lanes of traffic will be open between weekend closures. Traffic Enforcement Agents will be present from 9 PM Friday thru 6 AM

Monday for the weekend closures.

WORK ZONE

WEEKENDS #1 and #2

Accelerated Bridge Deck Construction(Stages 2 & 3)

188TH STREET1 LANE SOUTHBOUND 1 LANE NORTHBOUND

SIDEWALK CLOSED

SIDEWALK OPEN

3A 2A

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Work will include replacement and installation of roadway deck panels in the Southbound direction.

The west sidewalk will remain open and traffic will be reduced to one lay in each direction during the two weekend closure periods. Lane reduction hours are from Friday 10 PM thru Monday 5 AM.

All four lanes of traffic will be open between weekend closures. Traffic Enforcement Agents will be present from 9 PM Friday thru 6 AM

Monday for the weekend closures.

WEEKENDS #3 and #4

Accelerated Bridge Deck Construction(Stages 4 & 5)

WORK ZONE 188TH STREET

1 LANE SOUTHBOUND1 LANE NORTHBOUND

SIDEWALK CLOSED

SIDEWALK OPEN

4A 5A

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Accelerated Bridge Deck Construction(Stage 6)

188TH STREET

2 LANES NORTHBOUND

2 LANES SOUTHBOUND

SIDEWALK CLOSED

SIDEWALK OPEN

Work will include replacement of the West sidewalk and water main. The east sidewalk will remain open during this stage. All four (4) lanes will remain open to traffic. Temporary off-peak lane

closures. Traffic Enforcement Agents will be present from Monday to Friday

(daytime).

WORK ZONE

3 MONTH DURATION

9Accelerated Bridge Deck Construction8 Months: Preliminary Work• Work performed on underside of

bridge• Lane closures only on Grand Central

Parkway

3 Months: Stage 1• Northbound sidewalk closure on 188th

St.• No reduction of traffic lanes during

peak hours. Temporary off-peak lane closures.

• Southbound sidewalk remains open

4 Weekends of Lane Reductions over 2 Summer Months: Stages 2 - 5• Two lanes and one sidewalk closure

on 188th Street each weekend for 4 weekends

• One lane in each direction will be maintained during weekend closures

• Alternate routes will be in place with use of traffic enforcement agents to facilitate traffic flow

3 Months: Stage 6• Southbound sidewalk closure on 188th St.• Replace watermains beneath bridge

under Southbound sidewalk• Northbound sidewalk remains open• No reduction of traffic lanes during peak

hours. Temporary off-peak lane closures.

2 Months: Miscellaneous Work• Miscellaneous items – lighting, striping,

painting during off peak closures• Site restoration

TOTAL DURATION FOR DECK REPLACEMENT:

2 MONTHS

TOTAL DURATION OF 188TH STREET TRAFFIC IMPACTS:

4 WEEKENDS

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Accelerated Bridge Deck Construction Summary

• Total duration for roadway deck replacement: 2 months

• Total duration for 188th Street traffic impacts: 4 summer weekends

• Overall construction duration reduction of 6-7 months over conventional construction

• Lane closures on 4 summer weekends– Two lanes in each direction will be reduced to one lane in each

direction– Alternate routes will be in place with the use of traffic

enforcement agents to facilitate traffic control– Weekdays between weekend closures all lanes and sidewalks

will be opened

• 20% additional construction cost over conventional cost

• Minimum of one sidewalk on the bridge open at all times

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Current Schedule

• Construction Contract Letting: October 2015

• Construction Contract Award: December 2015

• Construction Completion April 2017

Contact Information:New York State Department of Transportation

Mr. James Romanovsky, P.E.(718) 482-4699