Walk Bridge Replacement CM/GC - Middlesex Corporation

Walk Bridge Replacement CM/GC

Norwalk, CT
Connecticut Department of Transportation

Complete replacement of the existing 1896 bridge superstructure and substructure.

The New Haven Line Railroad Bridge (Walk Bridge) over the Norwalk River in Norwalk was constructed in 1896. The existing four-span Walk Bridge consists of a rim-bearing swing span and three fixed approach spans. The structure carries four tracks of Metro-North commuter rail and Amtrak as well as freight carriers. Approximately 200 trains per day use the structure.

This project involves the complete replacement of the existing 1896 bridge superstructure and substructure using the CM/GC process. To improve the reliability of the corridor, the replacement structure will consist of twin double-track structures, with each bridge having independently operated movable spans.

Project Numbers


Project value

12,330 FT

Track replacement

19 EA

Catenary structure replacement

600 FT

Permanent submarine cable

300 FT

Temporary submarine cable

6 EA

New track switches and crossovers