The Town of Mount Pleasant retained Thomas & Hutton to complete Phase 1 of a comprehensive study of the Old Village Watershed. The study was commissioned to study the hydrology and hydraulics of the area, assess and make a formal report on the conditions of the Town’s existing drainage system, and recommend infrastructure improvements.
The study area is approximately 975 acres and is bounded by the Charleston Harbor on the south, the marshes of the Intracoastal Waterway (ICWW) on the east, Ben Sawyer Boulevard to the north, and Coleman Boulevard and Shem Creek to the west. The Old Village study area has been identified as part of the Town’s stormwater infrastructure in need of critical repair due to system/structural failures, issues related to tidal influences and sea level rise, and a lack of full engineering design at the time it was constructed. Before repairs and improvements to the stormwater infrastructure can be designed and constructed, an assessment of the existing drainage systems and problems needed to be performed.
The study included the following tasks:
Based on the results of the Old Village Watershed Study, Thomas & Hutton proposed drainage infrastructure improvement projects (with resulting costs) and was recently selected to perform the surveying, engineering, permitting, and construction oversight for these projects.