Mill Club
Mill Club is an earth dam located in Delaware County, Pennsylvania, built in 1908. It carries a Significant hazard potential classification and has a fair condition assessment.
About Mill Club
The primary purpose of Mill Club is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mill Dam Club (private). It impounds the Little Darby Creek.
The dam stands 22 feet tall and stretches 250 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 58 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1908, the structure is over a century old.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 03/14/2019.
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Location
| State | Pennsylvania |
| County | Delaware |
| River/Stream | Little Darby Creek |
| Coordinates | 40.03250, -75.40167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 250 ft |
| Year Completed | 1908 (118 years old) |
Storage & Hydraulics
| NID Storage | 58 acre-ft |
| Max Storage | 58 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | MILL DAM CLUB |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 03/14/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00932 |
| Federal ID | PA00932 |
| More Info | State Dam Safety Program |