Riverside South

Coordinated Success
New York, New York
Construction at the West 61st Street Bridge involved daily coordination with Amtrak to schedule flagmen during the days and night-time track outages with track monitoring and protection.
Construction at the West 61st Street Bridge involved daily coordination with Amtrak to schedule flagmen during the days and night-time track outages with track monitoring and protection.
The curved girder structure between West 71st Street and West 72nd Street is founded on steel H-piles driven into either rock or 10 inch diameter mini-caissons.
The curved girder structure between West 71st Street and West 72nd Street is founded on steel H-piles driven into either rock or 10 inch diameter mini-caissons.
A section of the Miller Highway Tunnel concrete shell was constructed from West 61st to West 64th Streets and 3.5-foot-thick concrete relieving platforms on H-piles were constructed to accommodate 25-foot-high embankment construction.
A section of the Miller Highway Tunnel concrete shell was constructed from West 61st to West 64th Streets and 3.5-foot-thick concrete relieving platforms on H-piles were constructed to accommodate 25-foot-high embankment construction.
Infrastructure work required extensive coordination and approvals by Amtrak, NYC DOT, and the New York City Department of Environmental Protection. We also worked closely with local residents to develop and implement community outreach programs.
Infrastructure work required extensive coordination and approvals by Amtrak, NYC DOT, and the New York City Department of Environmental Protection. We also worked closely with local residents to develop and implement community outreach programs.
As part of a new $3.5 billion, 7.9-million-square-foot condominium project with a 21.5-acre riverfront park at Riverside South, on New York City's waterfront, we provided resident engineering and construction inspection services for four new bridges and one tunnel built parallel to the elevated West Side Highway. Street reconstruction included new water mains, sanitary and storm sewer systems, curbs and sidewalks, handicap ramps, paving, new and retrofit electrical system upgrades to the street lighting system.

21.5

acre riverfront park

In transforming raw land into cityscape, we overcame several construction challenges, including:

  • steel H-piles driven into bedrock for relieving platform construction
  • coordination of construction over active Amtrak railways
  • installation of temporary power lines and new gas, electric, water, and sewer lines under newly built roads

With construction now complete, all bridge and underground facilities are being turned over to either NYCDOT or NYCDEP for future maintenance.

Owner

New York City Department of Transportation

Client

Extell Development Company

Square Footage

7.9 million SF

Cost

$3.5 billion

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703.849.0100