Oknoname 111085 is an earth dam located in Okmulgee County, Oklahoma, built in 1940. It carries a Low hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 3,310 ft long, taller than 62% 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 111085
The primary purpose of Oknoname 111085 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by James Rd & Linda Lou Lewis (private). It impounds the Flat Rock Creek near Preston.
The dam stands 28 feet tall and stretches 3,310 feet across, creates a reservoir covering 1 acres, and has a maximum storage capacity of 300 acre-feet. Completed in 1940, the structure is well-established, with more than 75 years of service.
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 | Preston |
| River/Stream | Flat Rock Creek |
| Coordinates | 35.71412, -95.98546 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 3,310 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 1 acres |
| Max Discharge | 18,800 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | James Rd & Linda Lou Lewis |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/24/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12347 |
| Federal ID | OK12347 |
| More Info | State Dam Safety Program |