Oknoname 111078
Oknoname 111078 is an earth dam located in Okmulgee County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
About Oknoname 111078
The primary purpose of Oknoname 111078 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 The Branson Family Trust (private). It impounds the Tr-coal Creek near Hoffman.
The dam stands 25 feet tall and stretches 3,380 feet across, creates a reservoir covering 3 acres, and has a maximum storage capacity of 100 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 08/24/2011. That was over 14 years ago.
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Location
| State | Oklahoma |
| County | Okmulgee |
| Nearest City | Hoffman |
| River/Stream | Tr-coal Creek |
| Coordinates | 35.45344, -95.92651 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 3,380 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 3 acres |
| Max Discharge | 2,100 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | THE BRANSON FAMILY TRUST |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/24/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12340 |
| Federal ID | OK12340 |
| More Info | State Dam Safety Program |