Ascalmore Structure Y-17a-76 Dam is an earth dam located in Tallahatchie County, Mississippi, built in 1970. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 35 ft35 ft tall, taller than 80% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Ascalmore Structure Y-17a-76 Dam
The primary purpose of Ascalmore Structure Y-17a-76 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is local government-owned.
The dam stands 35 feet tall, has a maximum storage capacity of 683 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1970, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 03/07/2013. That was over 13 years ago.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Mississippi |
| County | Tallahatchie |
| Coordinates | 33.92159, -90.01373 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 683 acre-ft |
| Max Storage | 683 acre-ft |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 03/07/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS01647 |
| Federal ID | MS01647 |
| More Info | State Dam Safety Program |