Lower Rocky River Dam
Client: Town of Siler City, NC
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Services provided in this project:
In order to increase its available water supply and alleviate chronic water shortages to meet existing and long-term projected needs, the Town of Siler City recently expanded the capacity of the Lower Rocky River Reservoir by constructing a larger and higher dam downstream of the original dam. Working under the prime consultant, JEWELL Engineering was involved with this project from the early conceptual design phase in 2000. JEWELL’s work included hydrologic and hydraulic analyses, dam configuration design, dam construction plans and specifications preparation, and permitting (NC Dam Safety and FEMA). Topographic and other site constraints required innovative design. The reservoir expansion was permitted under a Conditional Letter of Map Revision (CLOMR) issued in 2009 and a Letter of Map Revision (LOMR) issued in 2011, both prepared by JEWELL Engineering and Grimes Engineering. The LOMR entailed remapping over 3 miles of floodplain on the Rocky River as well as sections of Lacy Creek and Mud Lick Creek at their confluence with Rocky River. The expanded reservoir nearly doubles the Town’s raw water supply. Following construction of the dam, the Town of Siler City officially named the reservoir Charles L. Turner Reservoir.