Diel Wilma J & Elizabeth is an earth dam located in Harper County, Oklahoma, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 585 ft long, taller than 55% 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 Diel Wilma J & Elizabeth
Diel Wilma J & Elizabeth is a dam in Harper, Oklahoma. The dam is owned by Wilmer and Elizabeth Diel (private). It impounds the Tr-buffalo Creek near Freedom.
The dam stands 26 feet tall and stretches 585 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 310 acre-feet. Completed in 1965, 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 08/12/2011. That was over 15 years ago.
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Location
| State | Oklahoma |
| County | Harper |
| Nearest City | Freedom |
| River/Stream | Tr-buffalo Creek |
| Coordinates | 36.76275, -99.31445 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 585 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 310 acre-ft |
| Max Storage | 310 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 770 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Wilmer and Elizabeth Diel |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/12/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12259 |
| Federal ID | OK12259 |
| More Info | State Dam Safety Program |