Yost Reservoir
Yost Reservoir is an earth dam located in Payne County, Oklahoma, built in 1920. It carries a Low hazard potential classification.
About Yost Reservoir
The primary purpose of Yost Reservoir 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 Yost Lake Country Club (private). It impounds the East Brush Creek near Stillwater.
The dam stands 18 feet tall and stretches 1,000 feet across, creates a reservoir covering 26 acres, and has a maximum storage capacity of 260 acre-feet. Completed in 1920, the structure is over a century 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 12/03/2003. That was over 22 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oklahoma |
| County | Payne |
| Nearest City | Stillwater |
| River/Stream | East Brush Creek |
| Coordinates | 36.19952, -97.00865 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 260 acre-ft |
| Max Storage | 260 acre-ft |
| Normal Storage | 126 acre-ft |
| Surface Area | 26 acres |
| Max Discharge | 4,740 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | YOST LAKE COUNTRY CLUB |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 12/03/2003 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK10064 |
| Federal ID | OK10064 |
| More Info | State Dam Safety Program |