121 (johnson) is an earth dam located in Osage County, Kansas, built in 2014. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 765 ft long, taller than 74% 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 121 (johnson)
The primary purpose of 121 (johnson) 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 Salt Creek Wjd No 104 (local government). It impounds the Swede Creek-tr near Osage City.
The dam stands 32 feet tall and stretches 765 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 188 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2014, the structure is relatively new.
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 | Osage |
| Nearest City | Osage City |
| River/Stream | Swede Creek-tr |
| Coordinates | 38.66077, -95.89599 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 27 ft |
| Dam Length | 765 ft |
| Year Completed | 2014 (12 years old) |
Storage & Hydraulics
| NID Storage | 188 acre-ft |
| Max Storage | 188 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Salt Creek Wjd No 104 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS09518 |
| Federal ID | KS09518 |
| More Info | State Dam Safety Program |