Frd No 7-7 is an earth dam located in Greenwood County, Kansas, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 39 ft39 ft tall and 1,000 ft long, taller than 85% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Frd No 7-7
The primary purpose of Frd No 7-7 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Upper Verdigris Wjd No 24 (local government). It impounds the Holderman Creek near Virgil.
The dam stands 39 feet tall and stretches 1,000 feet across, creates a reservoir covering 29 acres, has a maximum storage capacity of 985 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.
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.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Kansas |
| County | Greenwood |
| Nearest City | Virgil |
| River/Stream | Holderman Creek |
| Coordinates | 38.11783, -96.14509 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 985 acre-ft |
| Max Storage | 985 acre-ft |
| Normal Storage | 183 acre-ft |
| Surface Area | 29 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 720 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Upper Verdigris Wjd No 24 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS02308 |
| Federal ID | KS02308 |
| More Info | State Dam Safety Program |