Edison Bridge (US Rt. 9) over the Raritan River, NJ
As part of a $48 million construction project, a major overhaul of the aging 60-year-old Edison Bridge addressed issues relating to the structure’s advanced age and those required to bring it up to the latest highway standards. The firm provided construction inspection for the replacement of the 29 span viaduct superstructure, rehabilitation of 28 piers (some over 170 feet in height), reconstruction of 2,590 feet of approach roadway, installation of a fender system, drainage improvements, underground utility relocation and new roadway lighting. The result was the conversion of the old Route 9 Edison Bridge from a one-span, four-lane structure with no shoulders to a two-span bridge carrying six lanes and two shoulders.