Dd No 2
Dd No 2 is an earth dam located in Lyon County, Kansas, built in 2004. It carries a Low hazard potential classification.
About Dd No 2
The primary purpose of Dd No 2 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 Allen Creek Wd No 89 (local government). It impounds the Stillman Creek.
The dam stands 22 feet tall and stretches 1,500 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 986 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 2004, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/16/2004. That was over 21 years ago.
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Location
| State | Kansas |
| County | Lyon |
| River/Stream | Stillman Creek |
| Coordinates | 38.51219, -96.18044 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 1,500 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 986 acre-ft |
| Max Storage | 986 acre-ft |
| Normal Storage | 117 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,320 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | ALLEN CREEK WD NO 89 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Last Inspection | 09/16/2004 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS09017 |
| Federal ID | KS09017 |
| More Info | State Dam Safety Program |