Frd No 18 is an earth dam located in Butler County, Kansas, built in 1966. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 30 ft30 ft tall and 970 ft long, taller than 68% 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 18
The primary purpose of Frd No 18 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 Little Walnut-hickory Wjd No 18 (local government). It impounds the So Br Little Walnut River-tr near Leon.
The dam stands 30 feet tall and stretches 970 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 510 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1966, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 01/06/2020.
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Location
| State | Kansas |
| County | Butler |
| Nearest City | Leon |
| River/Stream | So Br Little Walnut River-tr |
| Coordinates | 37.69141, -96.65707 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 29 ft |
| Dam Length | 970 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 510 acre-ft |
| Max Storage | 510 acre-ft |
| Normal Storage | 39 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 433 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Little Walnut-hickory Wjd No 18 |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 01/06/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS02099 |
| Federal ID | KS02099 |
| More Info | State Dam Safety Program |