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Dewberry Selected to Evaluate Flood Risk Management Project Alternatives for the COE Mobile District Print E-mail
Written by Dewberry   
Monday, 20 November 2017

Firm to analyze six design alternatives along creek and tributaries

Fairfax, VAóNovember 20, 2017 - Dewberry, a privately held professional services firm, has been selected by the U.S. Army Corps of Engineers (USACE) Mobile District to support a flood risk Sweetwater Creek has a long history of flooding, including a 2009 storm event. Photo courtesy of Dewberry.management feasibility study that aims to quantify flood risks and related flooding issues associated with the Sweetwater Creek Watershed, and to identify potential projects to reduce flood risks. The Sweetwater Creek basin, located in portions of Cobb, Douglas, and Paulding Counties, Georgia, is approximately 260 square miles and drains southeast, discharging into the Chattahoochee River. This basin has a history of severe flooding, including a historic flood event in September 2009 that caused extensive damage throughout portions of Cobb County.

Dewberry is developing hydrologic and hydraulic models for roughly 75 miles of stream. The models are being developed using the USACE Hydrologic Engineer Centerís (HEC) modeling suite to enable a direct comparison of potential flood mitigation project benefits. A key piece of software being implemented is the HECís new Watershed Analysis Tool (HEC-WAT), which provides a framework for integrated modeling and assessment of project alternatives. Historic events, including the July 2005 and September 2009 floods, will be used to calibrate the models and demonstrate the potential project benefits. The firm is analyzing six design alternatives along Sweetwater Creek and its tributaries, including channelization, retention, and diversion structures.

About Dewberry
Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients. Recognized for combining unsurpassed commitment to client service with deep subject matter expertise, Dewberry is dedicated to solving clientsí most complex challenges and transforming their communities. Established in 1956, Dewberry is headquartered in Fairfax, Virginia, with more than 50 locations and 2,000+ professionals nationwide. To learn more, visit www.dewberry.com.

 
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