Ophornett Martin
Ophornett Martin is an earth dam located in Okmulgee County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
About Ophornett Martin
Ophornett Martin is a dam in Okmulgee, Oklahoma. The dam is owned by Helen Weaver (private). It impounds the Tr-coal Creek near Hoffman.
The dam stands 30 feet tall and stretches 3,432 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 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 | 35.45257, -95.94000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 3,432 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 1 acres |
| Max Discharge | 5,500 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | HELEN WEAVER |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/24/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12341 |
| Federal ID | OK12341 |
| More Info | State Dam Safety Program |