Rock Manor Golf Course Dam
MATSON RUN·
New Castle, Delaware·
Built 2007·
Gravity·
24 ft tall
Physical Details
| Dam Height | 24 ft (taller than 93.9% in DE) |
| Dam Length | 475 ft |
| Dam Type | Gravity |
| Max Storage | 100 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 4,522 cfs |
| Year Completed | 2007 (19 years old) |
| NID ID | DE00105 |
Safety Information
High Hazard
Loss of human life is likely if the dam fails
Emergency Action Plan: No
State Regulated: Yes
Regulatory Agency: DNREC
Ownership
CITY OF WILMINGTON
Local Government
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Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Rock Manor Golf Course Dam?
Rock Manor Golf Course Dam is classified as High Hazard. Loss of human life is likely if the dam fails.
Who owns Rock Manor Golf Course Dam?
Rock Manor Golf Course Dam is owned by CITY OF WILMINGTON (Local Government).
When was Rock Manor Golf Course Dam built?
Rock Manor Golf Course Dam was completed in 2007, making it 19 years old.
Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.