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Trade Publication Article
THE CIVIL WAR, A RAIL BRIDGE, AND DOGS
2022
Overview
A historic timber bridge over the Bonnet Carré Spillway near Norco LA is approaching the end of its service life. Built in 1935, the bridge has seen several spillway opening as well as many severe weather events, and it is no longer economical to continue repairing it. Canadian National Railway (CN) and its subsidiary Illinois Central Railroad (ICRR) decided in 2018 on a new 8,000-ft-long precast concrete replacement, which would leave the track alignment and base of the rail profile unchanged. The problem: At a preliminary permitting meeting, the US Army Corps of Engineers (USACE) revealed a tenuous oral history from the 1980s, which placed a potential Civil War-era cemetery on the site. Typically, this would require the excavation of large swaths of the site, a process that would be extremely expensive and could add months of delay to the $70 million project. The project team, environmental specialists from CN, and engineering firm HDR, got to work on finding a solution.
Publisher
Simmons-Boardman Publishing Corporation
Subject
