Robbins Roy L is an earth dam located in Pawnee County, Oklahoma, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 480 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 Robbins Roy L
Robbins Roy L is a dam in Pawnee, Oklahoma. The dam is owned by Roy Lee Robbins (private). It impounds the Tr-arkansas River near Ralston.
The dam stands 20 feet tall and stretches 480 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 80 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 11/25/2003. That was over 22 years ago.
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Location
| State | Oklahoma |
| County | Pawnee |
| Nearest City | Ralston |
| River/Stream | Tr-arkansas River |
| Coordinates | 36.48801, -96.82082 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 480 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 5 acres |
| Max Discharge | 500 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Roy Lee Robbins |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/25/2003 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12759 |
| Federal ID | OK12759 |
| More Info | State Dam Safety Program |