Johns Creek Dam #1
Johns Creek Dam #1 is an earth dam located in Craig County, Virginia. It carries a High hazard potential classification and has a fair condition assessment.
About Johns Creek Dam #1
The primary purpose of Johns Creek Dam #1 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Mountain Castles Soil And Water Conservation District (local government). It impounds the Johns Creek.
The dam stands 62 feet tall and stretches 1,500 feet across, creates a reservoir covering 35 acres, has a maximum storage capacity of 3,759 acre-feet, and collects water from a drainage area of 19 square miles.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 09/13/2022.
At 62 feet, this dam is taller than 95% of all dams in the United States.
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 Virginia 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 | Virginia |
| County | Craig |
| River/Stream | Johns Creek |
| Coordinates | 37.40120, -80.42970 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 62 ft |
| Dam Height | 62 ft |
| Dam Length | 1,500 ft |
Storage & Hydraulics
| NID Storage | 3,759 acre-ft |
| Max Storage | 3,759 acre-ft |
| Normal Storage | 149 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 19 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Mountain Castles Soil and Water Conservation District |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 09/13/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | VA045002 |
| Federal ID | VA045002 |
| More Info | State Dam Safety Program |