Dd No 8 is an earth dam located in Wabaunsee County, Kansas, built in 1996. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 1,000 ft long, taller than 65% 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 Dd No 8
The primary purpose of Dd No 8 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 Upper Marais Des Cygnes Wjd No 101 (local government). It impounds the Elm Creek near Melvern.
The dam stands 29 feet tall and stretches 1,000 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 663 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1996, the structure is 30 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. The most recent inspection on record was 10/03/1995. That was over 31 years ago.
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Location
| State | Kansas |
| County | Wabaunsee |
| Nearest City | Melvern |
| River/Stream | Elm Creek |
| Coordinates | 38.81497, -96.12766 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 663 acre-ft |
| Max Storage | 663 acre-ft |
| Normal Storage | 62 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,040 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Upper Marais Des Cygnes Wjd No 101 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/03/1995 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS09090 |
| Federal ID | KS09090 |
| More Info | State Dam Safety Program |