Owner: The New York City Department of Transportation
Contractor: Granite Halmar Construction Company, Inc.
Superstructure Erector: Imperial Ironworks, Inc.
Engineer: Gannett Fleming, Inc.
The Belt Parkway Bridge in Brooklyn, NY carries over 166,000 vehicles per day over Ocean Parkway in close proximity to nearby Coney Island Hospital, Abraham Lincoln High School, numerous apartment buildings and local businesses. The New York City Department of Transportation, Design Build Group fostered interactive design and construction activities and delivered this 2,400 SQM bridge replacement project in just one construction season. Community and traffic impacts were minimized by meticulous and sensitive planning in all phases of the work. Construction activity impacting traffic was limited to just 265 days. This project was selected by Roads & Bridges Magazine in their November, 2004 issue as one of the top 10 bridge projects in the United States in 2004.
To minimize erection time the entire bridge, consisting of 51 precast bridge units, was pre-erected at Fort Miller’s plant. After all units were accurately positioned, holes were drilled for diaphragms and splice plates. The concrete deck, containing micro silica, flyash and corrosion inhibitor, coupled with stainless steel reinforcement was made continuous with the loop-on-loop closure pour, shown above, to provide the NYCDOT with a structure that has an expected design life of 75 years.