Portsville Mill Pond Dam
Portsville Mill Pond Dam is a gravity dam located in Sussex County, Delaware. It carries a Low hazard potential classification and has a fair condition assessment.
About Portsville Mill Pond Dam
The primary purpose of Portsville Mill Pond 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 Deldot;dnrec Dfw (state). It impounds the Mill Branch near River View Acres.
The dam stands 11 feet tall and stretches 195 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 160 acre-feet, and collects water from a drainage area of 8 square miles.
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 04/23/2020.
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Location
| State | Delaware |
| County | Sussex |
| Nearest City | River View Acres |
| River/Stream | Mill Branch |
| Coordinates | 38.56149, -75.63123 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 195 ft |
Storage & Hydraulics
| NID Storage | 160 acre-ft |
| Max Storage | 160 acre-ft |
| Normal Storage | 72 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 1,303 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | DELDOT;DNREC DFW |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/23/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | DE00059 |
| Federal ID | DE00059 |
| More Info | State Dam Safety Program |