Dd No 205
Dd No 205 is an earth dam located in Lyon County, Kansas. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Dd No 205
The primary purpose of Dd No 205 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 84 (local government). It impounds the Bluff Creek-tr near Dunlap.
The dam stands 28 feet tall and stretches 1,200 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 424 acre-feet, and collects water from a drainage area of 1 square miles.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/19/2023.
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Location
| State | Kansas |
| County | Lyon |
| Nearest City | Dunlap |
| River/Stream | Bluff Creek-tr |
| Coordinates | 38.68202, -96.31184 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 1,200 ft |
Storage & Hydraulics
| NID Storage | 424 acre-ft |
| Max Storage | 424 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 750 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | ROCK CREEK WJD NO 84 |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/19/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS07374 |
| Federal ID | KS07374 |
| More Info | State Dam Safety Program |