Powellville Dam
Powellville Dam is an earth dam located in Wicomico County, Maryland, built in 1940. It carries a Low hazard potential classification and has a fair condition assessment.
About Powellville Dam
The primary purpose of Powellville Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Md Dot-state Highway Admin District 1 (state). It impounds the Adkins Race near Powellville.
The dam stands 9 feet tall and stretches 550 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 186 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1940, the structure is well-established, with more than 75 years of service.
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 10/26/2023.
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Location
| State | Maryland |
| County | Wicomico |
| Nearest City | Powellville |
| River/Stream | Adkins Race |
| Coordinates | 38.33080, -75.37370 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 550 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 186 acre-ft |
| Max Storage | 186 acre-ft |
| Normal Storage | 77 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 2,580 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | MD DOT-State Highway Admin District 1 |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/26/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00015 |
| Federal ID | MD00015 |
| More Info | State Dam Safety Program |