Scs-cottonwood Creek Site-11 is an earth dam located in Logan County, Oklahoma, built in 1973. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 1,470 ft long, taller than 50% 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 Scs-cottonwood Creek Site-11
The primary purpose of Scs-cottonwood Creek Site-11 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 Logan Co Cons Dist (state). It impounds the Tr-cottonwood Creek near Seward.
The dam stands 25 feet tall and stretches 1,470 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 326 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1973, the structure is well into its service life at over 50 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 07/18/1996. That was over 30 years ago.
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Location
| State | Oklahoma |
| County | Logan |
| Nearest City | Seward |
| River/Stream | Tr-cottonwood Creek |
| Coordinates | 35.78662, -97.66136 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 1,470 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 326 acre-ft |
| Max Storage | 326 acre-ft |
| Normal Storage | 54 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 545 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Logan Co Cons Dist |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/18/1996 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK10252 |
| Federal ID | OK10252 |
| More Info | State Dam Safety Program |