Holton Pond Dam
Holton Pond Dam is an earth dam located in St. Mary's County, Maryland, built in 1958. It carries a Low hazard potential classification and has a fair condition assessment.
About Holton Pond Dam
The primary purpose of Holton Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dod Usn (federal). It impounds the Pine Hill Run near Nas Paxutent River.
The dam stands 13 feet tall and stretches 197 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 115 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1958, 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 06/06/2023.
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Location
| State | Maryland |
| County | St. Mary's |
| Nearest City | Nas Paxutent River |
| River/Stream | Pine Hill Run |
| Coordinates | 38.26809, -76.42081 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 197 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 115 acre-ft |
| Max Storage | 115 acre-ft |
| Normal Storage | 39 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | DOD USN |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/06/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MD00146 |
| Federal ID | MD00146 |
| More Info | State Dam Safety Program |