Allegheny River Lock and Dam 9
Pennsylvania — Armstrong County — ALLEGHENY RIVER
Location
| State | Pennsylvania |
| County | Armstrong |
| River | ALLEGHENY RIVER |
| Coordinates | 40.95627, -79.54876 |
Physical Characteristics
| NID Height | 55 ft |
| Dam Height | — |
| Dam Length | 1,040 ft |
| NID Storage | 13,500 acre-ft |
| Max Storage | 13,500 acre-ft |
| Surface Area | 1,040 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | September 20, 2024 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1938 |
| Primary Purpose | Navigation |
| Dam Type | Gravity |
| Owner Type | Federal |
| Owner | USACE - Pittsburgh District |
| Other Name | Allegheny River Pool 09 |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.