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Water Quantity

Dealing with the quantity of stormwater can be an extreme challenge for areas inundated with increasingly severe wet weather events and limited resources. Donohue’s team of engineers study and design solutions to mitigate flooding and provide sustainable, holistic services to control stormwater flows.

We are versed in both gray and green infrastructure and can provide engineering services for natural features as well. From stream bank stabilization to storm water pumping stations, sewer separation to retention ponds, our services are comprehensive. Experts in modeling, our engineers use advanced practices to pinpoint problems and accurately and efficiently address them.

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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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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