26 Apr 2023

Preliminary Finding of No Significant Impact, Environmental Assessment, and 404(b)(1) Evaluation for Rehabilitation of Shore Protection, Duluth Project Office, St. Louis County, Duluth, MN

Expiration date: 5/26/2023

The Detroit District is proposing to rehabilitate the riprap shoreline protection along the Duluth Ship Canal property immediately north of the ship canal and extending along the shore for approximately 200 feet. Part of the reconstruction work is below the Ordinary High Water Mark (OHWM) of Lake Superior (elevation of 603.1 feet IGLD 1985). Associated upland work includes installation of a steel sheet pile T-wall along the length of the revetment that connects to the City of Duluth’s T-wall, replacement of the existing sidewalk and reconstructing two existing storm drains.