Oknoname 063020 is an earth dam located in Hughes County, Oklahoma, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 420 ft long, taller than 59% 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 063020
Oknoname 063020 is a dam in Hughes, Oklahoma. The dam is owned by Doyle Wilson (private). It impounds the Tr-holdenville Lake near Atwood.
The dam stands 27 feet tall and stretches 420 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 74 acre-feet. Completed in 1970, 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 08/08/2011. That was over 15 years ago.
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Location
| State | Oklahoma |
| County | Hughes |
| Nearest City | Atwood |
| River/Stream | Tr-holdenville Lake |
| Coordinates | 35.05716, -96.33845 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 420 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 74 acre-ft |
| Max Storage | 74 acre-ft |
| Normal Storage | 32 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 940 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Doyle Wilson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/08/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12520 |
| Federal ID | OK12520 |
| More Info | State Dam Safety Program |