H&H performed bridge design for the Willis Avenue Swing Bridge located between the Bronx and Manhattan. This project involved the replacement of the existing bridge with a new off-line swing bridge and 3,000 feet of approach viaducts, including the ramps providing a connection from the FDR Drive and to Bruckner Boulevard.

H&H project work included an NYCDOT Bridge Reconstruction Project Report and preliminary design, a DR/EIS necessary for state/federal funding, and final design. The design incorporated a new 345-foot-long through-truss-type swing span, steel box girder spans over an active rail yard, curved girders, and other structure-types necessary to stage construction and maintain traffic including 72,000 vehicles per day on the mainline bridge. Included in the design is a new combined bikeway/walkway facility provided to connect adjoining parks and an NYC bike route in Manhattan and the Bronx. Extensive community participation and agency coordination was required as was permitting from many city, state, and federal agencies. H&H provided seismic analysis studies; complex geometry; traffic impact for approach streets; environmental impact statements; mitigation of impacts on historic structures; and in-house structural, mechanical, and electrical design.

Project Accolades

Accelerated Bridge Construction Commendation
National Steel Bridge Alliance
Diamond Award
ACEC NY - Engineering Excellence Award
National Recognition Award
ACEC National Engineering Excellence Award
Project of the Year
New York State Society of Professional Engineers
Construction Achievement Award
ASCE Metropolitan Section
Steel Construction Design Awards in the International Category
Canadian Institute of Steel Construction