Oknoname 111077 is an earth dam located in Okmulgee County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 3,630 ft long, taller than 68% 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 Oknoname 111077
The primary purpose of Oknoname 111077 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Branson Family Trust (private). It impounds the Tr-coal Creek near Hoffman.
The dam stands 30 feet tall and stretches 3,630 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 140 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 15 years ago.
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Location
| State | Oklahoma |
| County | Okmulgee |
| Nearest City | Hoffman |
| River/Stream | Tr-coal Creek |
| Coordinates | 35.45512, -95.92602 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 3,630 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 4,200 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Branson Family Trust |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/24/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12339 |
| Federal ID | OK12339 |
| More Info | State Dam Safety Program |