Oversized load corridor project progressing well, manager says A maze of overhead wires has all but disappeared from Exmouth Street in Sarnia, where a stretch of Sarnia-Lambton's oversized load corridor will run when construction wraps up, the project's manager says. Author of the article: Tyler Kula Publishing date: Mar 09, 2021 • March 9, 2021 • 2 minute read • A Bluewater Power worker is shown in this file photo lifting lines for a large industrial vessel leaving Sarnia Harbour and beginning its trip through Sarnia to Chemical Valley. Work on a permanent oversized load corridor is progressing well, the project manager says. Photo by Paul Morden /The Observer