Frd No 21 is an earth dam located in Butler County, Kansas, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 940 ft long, taller than 78% 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 21
The primary purpose of Frd No 21 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 Rock Creek Wjd No 28 (local government). It impounds the Rock Creek-tr near Winfield.
The dam stands 34 feet tall and stretches 940 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 481 acre-feet, and collects water from a drainage area of 0 square miles. 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 34 feet, this dam is taller than 78% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Kansas |
| County | Butler |
| Nearest City | Winfield |
| River/Stream | Rock Creek-tr |
| Coordinates | 37.51855, -96.64587 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 940 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 481 acre-ft |
| Max Storage | 481 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Rock Creek Wjd No 28 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS02143 |
| Federal ID | KS02143 |
| More Info | State Dam Safety Program |