Thad Cochran Lock And Dam
Thad Cochran Lock And Dam is a gravity dam located in Monroe County, Mississippi, built in 1982. It carries a Significant hazard potential classification.
About Thad Cochran Lock And Dam
The primary purpose of Thad Cochran Lock 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 - Mobile District (federal). It impounds the Tombigbee near Amory.
The dam stands 46 feet tall and stretches 3,400 feet across, creates a reservoir covering 914 acres, has a maximum storage capacity of 4,386 acre-feet, and collects water from a drainage area of 1,226 square miles. Completed in 1982, the structure is 44 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 04/08/2021.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Mississippi |
| County | Monroe |
| Nearest City | Amory |
| River/Stream | Tombigbee |
| Coordinates | 34.01122, -88.48839 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 46 ft |
| Dam Length | 3,400 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 4,386 acre-ft |
| Max Storage | 4,386 acre-ft |
| Normal Storage | 4,386 acre-ft |
| Surface Area | 914 acres |
| Drainage Area | 1,226 sq mi |
| Max Discharge | 420,900 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Navigation |
| Owner | USACE - Mobile District |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 04/08/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MS03058 |
| Federal ID | MS03058 |
| More Info | State Dam Safety Program |