Frd No 6-7 is an earth dam located in Lyon County, Kansas, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 37 ft37 ft tall and 1,670 ft long, taller than 83% 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 6-7
The primary purpose of Frd No 6-7 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 Moon Branch Verdigris River near Madison.
The dam stands 37 feet tall and stretches 1,670 feet across, creates a reservoir covering 46 acres, and has a maximum storage capacity of 1,585 acre-feet. Completed in 1966, 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 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Kansas |
| County | Lyon |
| Nearest City | Madison |
| River/Stream | Moon Branch Verdigris River |
| Coordinates | 38.21541, -96.21333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 1,670 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 1,585 acre-ft |
| Max Storage | 1,585 acre-ft |
| Normal Storage | 257 acre-ft |
| Surface Area | 46 acres |
| Max Discharge | 2,137 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 | KS02359 |
| Federal ID | KS02359 |
| More Info | State Dam Safety Program |