Mays Dam is an earth dam located in Chesterfield County, South Carolina, built in 1964. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 24 ft24 ft tall and 1,775 ft long. 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 Mays Dam
The primary purpose of Mays Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by US Fish and Wildlife Service (federal). It impounds the Long Branch.
The dam stands 24 feet tall and stretches 1,775 feet across, creates a reservoir covering 32 acres, has a maximum storage capacity of 234 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1964, 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 10/21/2015. That was over 10 years ago.
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Location
| State | South Carolina |
| County | Chesterfield |
| River/Stream | Long Branch |
| Coordinates | 34.57666, -80.17499 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 1,775 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 234 acre-ft |
| Max Storage | 234 acre-ft |
| Normal Storage | 170 acre-ft |
| Surface Area | 32 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,297 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US Fish and Wildlife Service |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/21/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SC00037 |
| Federal ID | SC00037 |
| More Info | State Dam Safety Program |