Rock Lake Dam is an earth dam located in Marion County, West Virginia, built in 1929. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 265 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Rock Lake Dam
The primary purpose of Rock Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Rock Lake Club Incorporated (private). It impounds the Glady Creek near Hammond.
The dam stands 17 feet tall and stretches 265 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 300 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1929, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/30/2021.
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Location
| State | West Virginia |
| County | Marion |
| Nearest City | Hammond |
| River/Stream | Glady Creek |
| Coordinates | 39.39583, -80.07056 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 265 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 5 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Rock Lake Club Incorporated |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/30/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WV04917 |
| Federal ID | WV04917 |
| More Info | State Dam Safety Program |