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McCoy Revetment Realignment Project
Project overview
The McCoy Levee is part of the federal Horseshoe Bend levee system. This system reduces flood and erosion risk to residential, commercial, and industrial properties in the City of Kent. Flooding in February 2020 damaged the levee, creating increased risks to nearby property and people.
The King County Flood Control District (District) and King County, as service provider, worked with the U.S. Army Corps of Engineers to repair the damage in October 2024.
In fall 2025, the District and King County will complete more improvements to reduce future flood risks. Work will include constructing a berm that will provide extra protection to South 259th Street. A berm is a raised structure, typically made from compacted soil, and often found at the top or bottom of a slope. Berms act as a separation barrier, redirecting the flow of water to provide additional flood risk reduction.
What is a levee?
A levee is a raised structure built along a riverbank to contain, control, or divert the flow of water and protect the land along the river from temporary flooding. A levee is usually made of earth and runs parallel to the course of a river.
Project goals
- Reduce flood risks to people, community resources, and infrastructure.
- Maintain or improve habitat for salmon and other fish.
- Limit disruptions to use of the Green River Trail.
- Limit traffic impacts throughout construction.
Project schedule (subject to change)
| Date | Activity |
|---|---|
| 2021 to 2025 | Design and permitting |
| Fall 2024 | Phase one construction |
| Fall 2025 | Phase two construction |
| 2025 to 2028 | Site monitoring and project close-out |
Construction impacts
The District and King County are working to limit the impact of construction. Construction may temporarily impact the use of roads, sidewalks, and trails in the area. Impacts to the Green River Regional Trail will be communicated in advance of construction, and trail detours will be provided.
We will continue to update this webpage with impacts to roads, sidewalks, and trails in the area as the project moves through design and permitting. We will also post signs and flyers near the project site and notify local businesses and residents before and during construction.