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Stormwater Case Studies

Donohue has performed Stormwater projects throughout the Midwest. Several case studies are provided below. These demonstrate some of our Stormwater experience and expertise.

Stormwater Runoff Pollution Mitigation  Thumbnail

Rossville is a combined sewer community that was struggling to mitigate combined sewer overflows.

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Hydraulic Studies and Upgrades Thumbnail

Donohue designed improvements for IDOT’s Pump Station No. 27, the existing main drains, and an outlet channel for drainage from tributary areas of I-94, I-57, and the Stony Island Extension in the southern section of Chicago.

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Stormwater Best Management Practices  Thumbnail

The Sheboygan Water Utility retained Donohue to design water storage reservoirs and a booster pumping station.

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Stormwater Management Master Plan Thumbnail

The City of Butler was experiencing surface flooding, combined sewer backups into homes, storm sewer surcharging, and high rates of infiltration and inflow during wet weather periods.

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Storm and Sanitary Sewer System Analysis Thumbnail

Donohue identified means of alleviating overloading Whitefish Bay’s sanitary and stormwater collection systems.

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City-Wide Stormwater Management Plan Thumbnail

Donohue completed an XP-SWMM 2D model for the City of Waukesha as part of a Stormwater Management Plan. Prior to this project, large storms caused unacceptable levels of stormwater flooding in the City.

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MS4 Permit Assistance Thumbnail

The City of Hammond operates a Municipal Separate Storm Sewer System (MS4) as designated by EPA’s Clean Water Act NPDES Phase II Storm Water Program.

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