Church Creek Drainage Basin Flood Reduction Study

Weston & Sampson was selected by the City of Charleston to conduct a flood reduction study of the Church Creek Drainage Basin, an area including over 10,000 acres of residential and commercial developments that has experienced increasingly severe and frequent flooding.

We upgraded the hydraulic model to ICPR4, directed over 14 outreach meetings, and developed 7 initiatives to manage the flooding problems. Recommendations included tidal surge protection at key locations, stormwater diversions, channel maintenance, protection of the flood plain, a regional stormwater pumping facility, and policy recommendations associated with the stormwater design manual. We have since been awarded one of the recommended projects. Our team was also later contracted to expand the ICPR4 model to include additional areas to help evaluate and guide further drainage improvements.