Dd No C-56 (king) is an earth dam located in Jackson County, Kansas, built in 1978. It carries a Low hazard potential classification.
Dam profile
NID height · 38 ft38 ft tall and 670 ft long, taller than 84% 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 C-56 (king)
The primary purpose of Dd No C-56 (king) 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 Delaware Wjd No 10 (local government). It impounds the Elk Creek-tr near Holton.
The dam stands 38 feet tall and stretches 670 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 123 acre-feet. Completed in 1978, the structure is 48 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.
At 38 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Kansas |
| County | Jackson |
| Nearest City | Holton |
| River/Stream | Elk Creek-tr |
| Coordinates | 39.48917, -95.80941 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 670 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 123 acre-ft |
| Max Storage | 123 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 5 acres |
| Max Discharge | 423 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Delaware Wjd No 10 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS04140 |
| Federal ID | KS04140 |
| More Info | State Dam Safety Program |