Antelope Flat (crook) is an earth dam located in Crook County, Oregon, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 37 ft37 ft tall and 640 ft long, taller than 83% 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 Antelope Flat (crook)
The primary purpose of Antelope Flat (crook) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Mccormick Ranch LLC (private). It impounds the Bear & Faught Creeks & 2 Tribs near Prineville.
The dam stands 37 feet tall and stretches 640 feet across, creates a reservoir covering 171 acres, has a maximum storage capacity of 2,000 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1965, 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 08/24/2017.
At 37 feet, this dam is taller than 83% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oregon |
| County | Crook |
| Nearest City | Prineville |
| River/Stream | Bear & Faught Creeks & 2 Tribs |
| Coordinates | 44.00491, -120.39317 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 33 ft |
| Dam Length | 640 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 2,000 acre-ft |
| Max Storage | 2,000 acre-ft |
| Normal Storage | 1,793 acre-ft |
| Surface Area | 171 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 1,090 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Mccormick Ranch LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/24/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00378 |
| Federal ID | OR00378 |
| More Info | State Dam Safety Program |