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MMSD reviewed the entire levee system and identified improvements required for the system to be accredited FEMA. Improvements include adding additional height to levees and floodwalls at several locations, storm sewer improvements, and sewer rehabilitation.
The Milwaukee Metropolitan Sewerage District (MMSD) is working towards the development of a levee system accreditation submittal to the Federal Emergency Management Agency (FEMA) for the Hart Park and Western Milwaukee levee system. Accrediting the levee system will allow recognition of the flood risk reduction benefits when floodplain maps are revised. MMSD will submit a levee system accreditation request to FEMA on behalf of the City of Milwaukee and the City of Wauwatosa. The request will be submitted when the construction is completed for the levee accreditation projects and the Western Milwaukee Phase 2B project.
For FEMA to recognize the completed levee system's flood risk reduction benefits requires a levee system accreditation application to FEMA for the entire Menomonee River levee system. Once FEMA approves a levee system application, remapping the floodplain in the surrounding project area can proceed.
The FEMA review process is expected to take up to three years. Some structures will remain in the mapped floodplain after the levee system is completed. These structures remaining in the floodplain will be evaluated for other flood risk reduction approaches, such as voluntary floodproofing and voluntary acquisition.
Ahead of the levee system accreditation submittal to FEMA, MMSD has reviewed FEMA standards for the entire system and has identified several improvements to the system that are required for the system to be accredited.
The levee system improvements are needed for the following reasons:
Planned Improvements for the Levee System include:
Levee and Floodwall Improvements
Spring 2021 – 2023 – Design
2024 – Construction
Storm Sewer Improvements
2024 – Design
2025 – Construction
Pipe Rehabilitation
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