Scs-cherokee Sandy Site-04 is an earth dam located in Garvin County, Oklahoma, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 1,010 ft long, taller than 74% 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-cherokee Sandy Site-04
The primary purpose of Scs-cherokee Sandy Site-04 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 Garvin Co Cons Dist (state). It impounds the Tr-willow Creek near Wynnewood.
The dam stands 32 feet tall and stretches 1,010 feet across, creates a reservoir covering 16 acres, and has a maximum storage capacity of 460 acre-feet. Completed in 1963, 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 01/01/1980. That was over 46 years ago.
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Location
| State | Oklahoma |
| County | Garvin |
| Nearest City | Wynnewood |
| River/Stream | Tr-willow Creek |
| Coordinates | 34.75941, -97.03632 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 1,010 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 460 acre-ft |
| Max Storage | 460 acre-ft |
| Normal Storage | 63 acre-ft |
| Surface Area | 16 acres |
| Max Discharge | 1,025 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Garvin Co Cons Dist |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/01/1980 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK00340 |
| Federal ID | OK00340 |
| More Info | State Dam Safety Program |