Soo Lock maintenance project
One of the Detroit District's largest lock maintenance projects at the Soo Locks this winter is the replacement of large portions of the sills for gates one and three in the Poe Lock. In the closed position, the gates rest against the sills forming a seal to hold water in the chamber.

Download Image: Full Size (0.63 MB)
Photo by: Detroit District |  VIRIN: 200303-A-CE999-244.JPG