Oknoname 111047 is an earth dam located in Okmulgee County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 3,440 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 111047
Oknoname 111047 is a dam in Okmulgee, Oklahoma. The dam is owned by Michael & Carolyn Chowins (private). It impounds the Tr-coal Creek near Henryetta.
The dam stands 28 feet tall and stretches 3,440 feet across, creates a reservoir covering 1 acres, and has a maximum storage capacity of 50 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 11/26/2001. That was over 24 years ago.
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Location
| State | Oklahoma |
| County | Okmulgee |
| Nearest City | Henryetta |
| River/Stream | Tr-coal Creek |
| Coordinates | 35.40970, -96.04626 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 3,440 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 1 acres |
| Max Discharge | 130 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Michael & Carolyn Chowins |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/26/2001 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12309 |
| Federal ID | OK12309 |
| More Info | State Dam Safety Program |