5 Dec 2023

Preliminary Finding of No Significant Impact and Environmental Assessment for Hartley Park Green Infrastructure Improvements, Duluth, St. Louis County, Minnesota

Expiration date: 1/5/2024

The USACE proposes partial cost reimbursement to the City of Duluth, pursuant to Section 569 of the Water Resources Development Act of 1999, Public Law 106-53, as amended. The cost reimbursement would be applied to the tentatively selected plan, which consists of the diversion and treatment of collected roadside stormwater. The roadside stormwater would be diverted to the Hartley Park Natural Area and treated through an underground sedimentation vault near the road, followed by a dual-purpose wet sedimentation and flood storage basin with the eastern portion providing sediment storage in the deep pond and the western portion constructed as a filtering wetland. A series of terraced biofiltration basins designed to treat and filter the stormwater will be constructed with the final outlet as a diffused discharge prior to entry to a tributary to Tischer Creek, a cold water trout stream.

8 Nov 2023

Preliminary Finding of No Significant Impact and Environmental Assessment for Muskegon Walkway and Revetment Rehabilitation

Expiration date: 12/8/2023

The tentatively chosen alternative will consist of excavating critical dunes to create access routes and work and storage areas to remove and replace a concrete walkway. The selected alternative includes 3,000 cubic yards (cyds) of excavated dune sand. The excavated sand will be placed west of the project site along the Lake Michigan shoreline. The proposed project will also include removal and replacement of the existing walkway and grouted stone impacting a 7.5ft wide by 2,300ft long area. The new walkway will include seven curb openings with 20ft-by-20ft turnabouts. The proposed project will also include a temporary access route along the walkway with an average width of 16ft and a maximum width of 24ft. Three (3) work and storage areas with dimensions of 70 feet wide by 150ft long and access and storage areas in the existing parking lot and along the existing concrete walkways. The work period is expected to begin in Summer 2024 and last a full construction season.

12 Sep 2023

Development of Cultural Resources Management Plan and Programmatic Agreement for the Soo Locks

Expiration date: 10/12/2023

Development of Cultural Resources Management Plan and Programmatic Agreement for the Soo Locks TO: All INTERESTED AGENCIES, PUBLIC GROUPS, AND CITIZENS The U.S. Army Corps of Engineers (USACE), Detroit District, proposes to update the Cultural Resources Management Plan for the U.S. Army Corps of Engineers, Detroit District, St. Marys Falls Canal (Soo Locks), Sault Ste. Marie, Michigan (Attachment 1) and develop a new Programmatic Agreement (PA) to implement the updated CRMP. The Soo Locks is listed on the National Register of Historic Places (NRHP) and has been designated a National Historic Landmark (NHL). This notice is provided pursuant to Section 800.6 of 36 C.F.R Part 800, Protection of Historic Properties, and Section 106 of 54 U.S.C. Subtitle III, National Historic Preservation Act (NHPA). A copy of this public notice can be provided upon request or can be reviewed online at http://www.lre.usace.army.mil/ by clicking on the link to “Other Public Notice” in the bottom left corner.

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.

14 Apr 2023

Dredged Material Open Water Placement, Charlevoix Harbor, Charlevoix County, Michigan

Expiration date: 5/14/2023

The U.S. Army Corps of Engineers (USACE), Detroit District, proposed action involves maintenance dredging of the Charlevoix Harbor federal navigation channel with placement of the dredged material into ½ mile by ½ mile (160 acres) open water placement site located offshore of Charlevoix County, Michigan. See Public Notice linked below for details, including a Preliminary Statement of Findings (SOF) and a Clean Water Act, Section 404(b)(1) Evaluation Of the Effects of Placing Fill Material into the Waters of the United States. Other documents referenced in the Preliminary SOF are also liked below.