Lorton Robert is an earth dam located in McIntosh County, Oklahoma, built in 1978. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall, 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 Lorton Robert
The primary purpose of Lorton Robert 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 Middle Creek LLC (private). It impounds the Tr Canadian River.
The dam stands 35 feet tall, creates a reservoir covering 8 acres, and has a maximum storage capacity of 150 acre-feet. Completed in 1978, the structure is 48 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 12/03/2010. That was over 15 years ago.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Oklahoma |
| County | McIntosh |
| River/Stream | Tr Canadian River |
| Coordinates | 35.16485, -95.97572 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 8 acres |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Middle Creek LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/03/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK21906 |
| Federal ID | OK21906 |
| More Info | State Dam Safety Program |