Environmental Assessment
US Army Corps of Engineers Detroit District NORTH BRANCH ECORSE CREEK FLOOD RISK MANAGEMENT STUDY WAYNE COUNTY, MICHIGAN ENVIRONMENTAL ASSESSMENT FEBRUARY 2017 NORTH BRANCH ECORSE CREEK FLOOD RISK MANAGEMENT STUDY WAYNE COUNTY, MICHIGAN ENVIRONMENTAL ASSESSMENT Cover Photo: North Branch Ecorse Creek, River Mile 5.8, southeast of Shenandoah Avenue, Allen Park, October 2010 Prepared for: Wayne County Drain Commissioner 400 Monroe Street, Suite 400 Detroit, MI 48226 and U.S. Army Corps of Engineers Detroit District (CELRE) 477 Michigan Avenue, 6th Floor Detroit, MI 48226 Prepared by: AECOM 27777 Franklin Road, Suite 2000 Southfield, MI 48034 Abstract Environmental Assessment North Branch Ecorse Creek Flood Risk Management Study Abstract The U.S. Army Corps of Engineers, Detroit District, and Wayne County, Michigan, are preparing a flood risk management plan for the North Branch Ecorse Creek (NBEC). The purpose of this plan is to evaluate flooding issues in the NBEC and provide effective flood damage reduction measures to reduce flood hazards and flood damage costs for the project area. A number of possible measures and alternative plans for reducing flood risk along the NBEC were considered. The recommended alternative includes construction of a single optimized detention basin, and greenway channel improvements of varying widths in the lower nine miles of the creek downstream from US-24 (Telegraph Road) to the Detroit River. Positive effects of the proposed action include improvements to public health and safety, traffic and transportation, and socioeconomics, through reduced flooding; increased infiltration of detained floodwater into the ground and reduced peak flows within the NBEC; improvements in water quality through reduced flooding and a widened and naturalized riparian corridor; increased hydrologic stability and improved wildlife habitat; and an increase in aesthetic values of the NBEC.
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