Simpson Reservoir (jackson) is an earth dam located in Jackson County, Oregon, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 800 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 embankment section and the water level is illustrative.
About Simpson Reservoir (jackson)
The primary purpose of Simpson Reservoir (jackson) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Dorothy Simpson (private). It impounds the Ramsey Canyon near Rogue River.
The dam stands 27 feet tall and stretches 800 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1967, 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 01/02/2015. That was over 11 years ago.
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Location
| State | Oregon |
| County | Jackson |
| Nearest City | Rogue River |
| River/Stream | Ramsey Canyon |
| Coordinates | 42.55949, -122.97022 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 26 ft |
| Dam Length | 800 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 73 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 35 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Dorothy Simpson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/02/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00439 |
| Federal ID | OR00439 |
| More Info | State Dam Safety Program |