Public Notice: Preliminary Finding of No Significant Impact and Environmental Assessment for Hartley Park Green Infrastructure Improvements, Duluth, St. Louis County, Minnesota
U.S. ARMY CORPS OF ENGINEERS, DETROIT DISTRICT
Published December 5, 2023 / Expiration date: January 5, 2023
SUMMARY: 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.
See attached Environmental Assessment for details:
COMMENT PERIOD: Begins: December 5, 2023 / Ends: January 5, 2023
Please provide all comments by email to LRE-MN569@usace.army.mil <mailto:LRE-MN569@usace.army.mil>