David L Mcmahan
David L Mcmahan is an earth dam located in Hughes County, Oklahoma, built in 1980. It carries a Low hazard potential classification.
About David L Mcmahan
David L Mcmahan is a dam in Hughes, Oklahoma. The dam is owned by John D Stafford (private). It impounds the Canadian River near Calvin.
The dam stands 22 feet tall and stretches 300 feet across, and has a maximum storage capacity of 66 acre-feet. Completed in 1980, the structure is 46 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 08/09/2011. That was over 14 years ago.
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Location
| State | Oklahoma |
| County | Hughes |
| Nearest City | Calvin |
| River/Stream | Canadian River |
| Coordinates | 34.98223, -96.31878 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 300 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 45 acre-ft |
| Max Discharge | 1,473 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | JOHN D STAFFORD |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/09/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK13266 |
| Federal ID | OK13266 |
| More Info | State Dam Safety Program |