Stone Ralph is an earth dam located in Okfuskee County, Oklahoma, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 600 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 Stone Ralph
The primary purpose of Stone Ralph is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Guy & Mevelene Wilson (private). It impounds the Tr-pettiquah Creek near Midway.
The dam stands 28 feet tall and stretches 600 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 170 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 05/25/2011. That was over 15 years ago.
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Location
| State | Oklahoma |
| County | Okfuskee |
| Nearest City | Midway |
| River/Stream | Tr-pettiquah Creek |
| Coordinates | 35.55711, -96.60561 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 600 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 170 acre-ft |
| Max Storage | 170 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 2,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Guy & Mevelene Wilson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/25/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12737 |
| Federal ID | OK12737 |
| More Info | State Dam Safety Program |