Hill Lake Dam is an earth dam located in Prentiss County, Mississippi, built in 2017. It carries a Significant hazard potential classification and has a unsatisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 474 ft long, taller than 50% 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 Hill Lake Dam
The primary purpose of Hill Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hill Development LLC (private). It impounds the Unnamed Stream.
The dam stands 25 feet tall and stretches 474 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 73 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2017, the structure is relatively new.
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. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. The most recent inspection on record was 08/24/2022.
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Location
| State | Mississippi |
| County | Prentiss |
| River/Stream | Unnamed Stream |
| Coordinates | 34.51611, -88.58278 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 23 ft |
| Dam Length | 474 ft |
| Year Completed | 2017 (9 years old) |
Storage & Hydraulics
| NID Storage | 73 acre-ft |
| Max Storage | 73 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Hill Development LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 08/24/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS07322 |
| Federal ID | MS07322 |
| More Info | State Dam Safety Program |