St. Clairsville Reservoir No. 1 Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Ohio |
| County | Belmont |
| Nearest City | ECHO |
| River/Stream | LITTLE McMAHON CREEK |
| Coordinates | 40.06528, -80.92167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 285 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 346 acre-ft |
| Max Storage | 346 acre-ft |
| Normal Storage | 157 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,479 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of St. Clairsville |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/11/2022 |
| Emergency Action Plan | Yes |