Sherwood Creek Reservoir is a rockfill dam located in Crook County, Oregon, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 340 ft long, taller than 59% 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 rockfill embankment section and the water level is illustrative.
About Sherwood Creek Reservoir
The primary purpose of Sherwood Creek Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Aspen Valley Ranches, Inc., C/o Bob Wood (private). It impounds the Sherwood Creek near Post.
The dam stands 27 feet tall and stretches 340 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 38 acre-feet, and collects water from a drainage area of 8 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 03/09/2020.
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Location
| State | Oregon |
| County | Crook |
| Nearest City | Post |
| River/Stream | Sherwood Creek |
| Coordinates | 44.09165, -120.48990 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 340 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 38 acre-ft |
| Max Storage | 38 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 125 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Aspen Valley Ranches, Inc., C/o Bob Wood |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/09/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR03042 |
| Federal ID | OR03042 |
| More Info | State Dam Safety Program |