Robert L Steffes - Gss No 1 is an earth dam located in Washita County, Oklahoma, built in 1984. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 979 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 Robert L Steffes - Gss No 1
The primary purpose of Robert L Steffes - Gss No 1 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 L Steffes (private). It impounds the Tr-trail Cr.
The dam stands 19 feet tall and stretches 979 feet across, has a maximum storage capacity of 126 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1984, the structure is 42 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.
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Location
| State | Oklahoma |
| County | Washita |
| River/Stream | Tr-trail Cr |
| Coordinates | 35.35554, -99.28801 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 979 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 126 acre-ft |
| Max Storage | 126 acre-ft |
| Normal Storage | 6 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 503 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Robert L Steffes |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK21877 |
| Federal ID | OK21877 |
| More Info | State Dam Safety Program |