Hays Lonell is an earth dam located in Comanche County, Oklahoma, built in 1975. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 835 ft long, taller than 80% 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 Hays Lonell
The primary purpose of Hays Lonell is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Ronnie Castlebury (private). It impounds the Tr Little Washita River near Ninnekah.
The dam stands 35 feet tall and stretches 835 feet across, and has a maximum storage capacity of 525 acre-feet. Completed in 1975, 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 09/23/2010. That was over 16 years ago.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Oklahoma |
| County | Comanche |
| Nearest City | Ninnekah |
| River/Stream | Tr Little Washita River |
| Coordinates | 34.82136, -98.16007 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 835 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 525 acre-ft |
| Max Storage | 525 acre-ft |
| Normal Storage | 240 acre-ft |
| Max Discharge | 1,940 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Ronnie Castlebury |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/23/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK13236 |
| Federal ID | OK13236 |
| More Info | State Dam Safety Program |