The roadway deck could accommodate an expansion for either two traffic lanes or two light-rail lanes.
Unlike the Mianus bridge, which was a pin-and-hanger design, the Thruway bridge was a simpler model, with the roadway deck resting on the four piers.
A one-year, $136 million project to replace the 66-year-old roadway deck of the Bronx-Whitestone Bridge will begin on May 31, the Metropolitan Transportation Authority has announced.
Bolshoy Ustinsky bridge was reconstructed in 1999-2000, replacing the roadway deck with an improved, lighter orthotropic type.
The roadway deck would extend beyond the edge of the outer beams and be lined with pre-cast crash barriers.
For the second time in a week, the Metropolitan Transportation Authority has rescheduled the start of a yearlong project to replace the 65-year-old roadway deck of the Bronx-Whitestone Bridge.
The roadway deck was approximately 115 feet (35 m) above the water level.
Next year, he said, the bridge's six-lane roadway deck and its drainage system will be replaced, which could not be done without toll money.
Twelve cables support the roadway deck, while twenty-four more are attached to the counterweights, creating an imposing image.
The existing steel-grated roadway deck on the lift span was replaced with a concrete-and-steel orthotropic deck.