REhabilitation of Six Bridges, Staten Island

This $12.3 million project, for which J-Track was the General contractor, consisted of the Rehabilitation of Six Bridges in Staten Island for the Staten Island Railroad.

The job involved work on six individual bridges built in the 1930's, which were in need of structural repair and renovations. New York City Transit (NYCT) provided a contract with 50 weekend shutdowns to complete the work. J-Track was able to complete the project using only 16 of the allotted 50 scheduled weekends. This extraordinary efficiency greatly mitigated the impact on the Transit Authority as well as the riding public.

The Rehabilitation of Six Bridges project presented a unique set of challenges. The existing deck of the Bay Street bridge was so deteriorated that it would not accept a new waterproofing membrane adhered to it. The design called for a temporary railroad track structure to be built to allow for the staged placement of a new concrete deck, which would accept waterproofing materials. J-Track, using innovative scheduling and planning, was able to elimnate the temporary railroad structure. The procedure involved the removal of the existing track, exposing the deteriorated concrete bridge surface below. J-Track then poured a new reinforced concrete slab; sandwiching the old slab. This new concrete allowed for a clean structural surface to waterproof. The process was a tremendous sucess. The schedule called for this particular aspect of the work to be completed over 13 weekend shutdowns. However, J-Track's ingenuity, creativity, and hard work allowed for the work to be completed over only six weekend outages.