Frd No 3-6 is an earth dam located in Lyon County, Kansas, built in 1962. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 1,080 ft long, taller than 72% 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 3-6
The primary purpose of Frd No 3-6 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 N Branch Verdigris River-tr near Madison.
The dam stands 31 feet tall and stretches 1,080 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 304 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1962, 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.
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Location
| State | Kansas |
| County | Lyon |
| Nearest City | Madison |
| River/Stream | N Branch Verdigris River-tr |
| Coordinates | 38.17831, -96.25508 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 1,080 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 304 acre-ft |
| Max Storage | 304 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 899 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 | KS02357 |
| Federal ID | KS02357 |
| More Info | State Dam Safety Program |