Henry Hudson Bridge

Judlau is halfway through the replacement of the lower level deck at the Henry Hudson Bridge. This 44-month- long project was started in October 2006, and is scheduled to be completed on time and within budget by the summer of 2010. Judlau is proving worthy of this significant project, hailed by the MTA facility engineer as "the most ambitious, complicated, and challenging construction job ever undertaken at this facility."

The bridge is essentially defined by two distinct structures: a 1,530 ft. long main span steel structure and a 270 ft. long North Approach concrete structure. After installing a 100,000 sf shield / working platform beneath the main span, Judlau was able to accelerate the much-needed replacement to the structure. All tower, fascia girder and column repairs have been completed, with new maintenance inspection platforms, seismic bearing replacements, floor beams replacement and new steel grid deck and overlay scheduled for 2009.

In the North Approach, Judlau installed new concrete seismic footings, steel columns and floor beams, while maintaining traffic to the lower and upper level structures via the existing concrete structure. Subsequently, after transferring the loads to the newly-installed structure, Judlau began demolishing the existing structure. In addition to the new deck, Judlau is replacing the entire concrete curtain wall/abutment perimeter shell, while maintaining the electrical control room located within the North Approach.

Other work being performed under this contract includes complete replacement of the lower level deck and navigational lighting systems; installation of an upper and lower level fire stand pipe system; and construction of a driveway and garage area in the North Approach.

The Henry Hudson Bridge is located on Highway 9A, between Manhattan and the Bronx. Opened in 1936, as the longest plate girder and fixed arch bridge in the world, this project is part of a series to help maintain a vital link to Manhattan's west side.