Brandywine Creek Dam No. 9 is a rockfill dam located in New Castle County, Delaware, built in 1800. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 140 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic rockfill embankment section and the water level is illustrative.
About Brandywine Creek Dam No. 9
The primary purpose of Brandywine Creek Dam No. 9 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dnrec Dpr (state). It impounds the Brandywine Creek near Rockland.
The dam stands 9 feet tall and stretches 140 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 807 acre-feet, and collects water from a drainage area of 304 square miles. Completed in 1800, the structure is one of the older dams in the region, with over a century and a half 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.
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Location
| State | Delaware |
| County | New Castle |
| Nearest City | Rockland |
| River/Stream | Brandywine Creek |
| Coordinates | 39.79753, -75.57493 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 140 ft |
| Year Completed | 1800 (226 years old) |
Storage & Hydraulics
| NID Storage | 807 acre-ft |
| Max Storage | 807 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 304 sq mi |
| Max Discharge | 1,933 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Dnrec Dpr |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | DE00045 |
| Federal ID | DE00045 |
| More Info | State Dam Safety Program |