Allegheny River Lock And Dam 9
Low HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Pennsylvania |
| County | Armstrong |
| Nearest City | RIMER |
| River/Stream | ALLEGHENY RIVER |
| Coordinates | 40.95627, -79.54876 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 55 ft |
| Dam Length | 1,040 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 13,500 acre-ft |
| Max Storage | 13,500 acre-ft |
| Normal Storage | 13,500 acre-ft |
| Surface Area | 1,040 acres |
| Drainage Area | 8,401 sq mi |
| Max Discharge | 125,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Navigation |
| Owner | USACE - Pittsburgh District |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 09/20/2024 |
| Emergency Action Plan | Yes |