Humphrey L.l. is an earth dam located in Stephens County, Oklahoma, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 400 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 Humphrey L.l.
The primary purpose of Humphrey L.l. 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 Robert O Bailey (private). It impounds the Tr Fitzpatrick Creek near Thomas School.
The dam stands 19 feet tall and stretches 400 feet across, and has a maximum storage capacity of 50 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 09/01/2011. That was over 15 years ago.
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Location
| State | Oklahoma |
| County | Stephens |
| Nearest City | Thomas School |
| River/Stream | Tr Fitzpatrick Creek |
| Coordinates | 34.53475, -97.86455 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 400 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 40 acre-ft |
| Max Discharge | 620 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Robert O Bailey |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/01/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK21412 |
| Federal ID | OK21412 |
| More Info | State Dam Safety Program |