Dd No. 143
Dd No. 143 is an earth dam located in Cowley County, Kansas, built in 1998. It carries a Low hazard potential classification.
About Dd No. 143
The primary purpose of Dd No. 143 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 Middle Walnut Wjd No 60 (local government). It impounds the Walnut River-tr.
The dam stands 21 feet tall and stretches 1,000 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 220 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1998, the structure is 28 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 | Cowley |
| River/Stream | Walnut River-tr |
| Coordinates | 37.34966, -97.00511 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1998 (28 years old) |
Storage & Hydraulics
| NID Storage | 220 acre-ft |
| Max Storage | 220 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 768 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | MIDDLE WALNUT WJD NO 60 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS07851 |
| Federal ID | KS07851 |
| More Info | State Dam Safety Program |