Prokap & Mcwilliams
Prokap & Mcwilliams is an earth dam located in Okfuskee County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
About Prokap & Mcwilliams
The primary purpose of Prokap & Mcwilliams is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Charles A & E Anna Mcwilliams (private). It impounds the North Canadian Riv near Graham.
The dam stands 40 feet tall and stretches 590 feet across, and has a maximum storage capacity of 60 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 05/31/2011. That was over 14 years ago.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Oklahoma |
| County | Okfuskee |
| Nearest City | Graham |
| River/Stream | North Canadian Riv |
| Coordinates | 35.35057, -96.11027 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 590 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 40 acre-ft |
| Max Discharge | 1,800 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | CHARLES A & E ANNA MCWILLIAMS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 05/31/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12750 |
| Federal ID | OK12750 |
| More Info | State Dam Safety Program |