Hannibal Locks And Dam
Hannibal Locks And Dam is a gravity dam located in Wetzel County, West Virginia, built in 1974. It carries a Significant hazard potential classification.
About Hannibal Locks And Dam
The primary purpose of Hannibal Locks And Dam is navigation. The dam maintains water levels sufficient for boat and barge traffic, supporting commercial or recreational navigation on the waterway. The dam is owned by Usace - Pittsburgh District (federal). It impounds the Ohio River near New Martinsville.
The dam stands 51 feet tall and stretches 1,403 feet across, creates a reservoir covering 6,650 acres, has a maximum storage capacity of 130,000 acre-feet, and collects water from a drainage area of 25,967 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 06/29/2021.
At 51 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | West Virginia |
| County | Wetzel |
| Nearest City | New Martinsville |
| River/Stream | Ohio River |
| Coordinates | 39.66711, -80.86346 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 51 ft |
| Dam Length | 1,403 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 130,000 acre-ft |
| Max Storage | 130,000 acre-ft |
| Normal Storage | 130,000 acre-ft |
| Surface Area | 6,650 acres |
| Drainage Area | 25,967 sq mi |
| Max Discharge | 335,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Navigation |
| Owner | USACE - Pittsburgh District |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 06/29/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WV10301 |
| Federal ID | WV10301 |
| More Info | State Dam Safety Program |