Queensboro Bridge?-?Manhattan and Queens, N.Y.
Built in 1908, the high-profile Queensboro Bridge spans the East River connecting the boroughs of Manhattan and Queens. The approximately 1-mile-long, two-level, 10-lane bridge serves about 100,000 daily vehicles. The owner required a contractor who could work closely with city, public and private agencies during the bridge’s rehabilitation
A Kiewit-led joint venture completed this project in 42 months. Crews scheduled around three maintenance-of-traffic phases: pre-stage involved closing the upper roadway lanes to allow painting and overlay work on the upper structure during an 11-month period; stage one, a 15-month period of lower outer roadway reconstruction on the north side; and stage two, a 14-month reconstruction of the lower outer roadway on the south side.
Work consisted of the removal and replacement of the lower outer roadways; major painting; architectural repairs to city shops and the market area below the bridge; full replacement of necklace and navigation lighting; south upper roadway overlay replacement; and site work (including utility relocation) on both approaches.
Unique challenges included a hi-level shielding operation over sensitive areas, material handling in an extremely tight workspace, and maintenance and protection of traffic on a high-volume East River crossing.