Wapanucka is an earth dam located in Johnston County, Oklahoma, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 225 ft long. 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 Wapanucka
The primary purpose of Wapanucka is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Town of Wapanucka (local government). It impounds the Sandy Cr near Wapanucka.
The dam stands 20 feet tall and stretches 225 feet across, creates a reservoir covering 16 acres, and has a maximum storage capacity of 165 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 07/22/2002. That was over 24 years ago.
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Location
| State | Oklahoma |
| County | Johnston |
| Nearest City | Wapanucka |
| River/Stream | Sandy Cr |
| Coordinates | 34.37308, -96.45508 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 225 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 165 acre-ft |
| Max Storage | 165 acre-ft |
| Normal Storage | 123 acre-ft |
| Surface Area | 16 acres |
| Max Discharge | 2,046 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Town of Wapanucka |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/22/2002 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK02199 |
| Federal ID | OK02199 |
| More Info | State Dam Safety Program |