Scs-upper Clear Boggy Creek Site-12 is an earth dam located in Johnston County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 47 ft47 ft tall and 560 ft long, taller than 91% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Scs-upper Clear Boggy Creek Site-12
The primary purpose of Scs-upper Clear Boggy Creek Site-12 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 Johnston Co Cons Dist (state). It impounds the Tr-goose Creek near Olney.
The dam stands 47 feet tall and stretches 560 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 436 acre-feet. Completed in 1960, 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.
At 47 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Oklahoma |
| County | Johnston |
| Nearest City | Olney |
| River/Stream | Tr-goose Creek |
| Coordinates | 34.49408, -96.52158 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 47 ft |
| Dam Height | 47 ft |
| Dam Length | 560 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 436 acre-ft |
| Max Storage | 436 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 5 acres |
| Max Discharge | 1,910 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Johnston 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 | OK02195 |
| Federal ID | OK02195 |
| More Info | State Dam Safety Program |