Mountain Lake Dam
Mountain Lake Dam is an earth dam located in Alleghany County, North Carolina, built in 1973. It carries a High hazard potential classification and has a poor condition assessment.
About Mountain Lake Dam
The primary purpose of Mountain Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mountain Lake Property Owners Assc., Inc. (private). It impounds the Crab Creek near Ennice.
The dam stands 41 feet tall and stretches 350 feet across, creates a reservoir covering 34 acres, has a maximum storage capacity of 746 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1973, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 10/02/2024.
At 41 feet, this dam is taller than 88% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The North Carolina dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | North Carolina |
| County | Alleghany |
| Nearest City | Ennice |
| River/Stream | Crab Creek |
| Coordinates | 36.54310, -80.98050 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Length | 350 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 746 acre-ft |
| Max Storage | 746 acre-ft |
| Normal Storage | 471 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 119 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mountain Lake Property Owners Assc., Inc. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 10/02/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NC00246 |
| Federal ID | NC00246 |
| More Info | State Dam Safety Program |