Pierce Reservoir
Pierce Reservoir is an earth dam located in Jackson County, Oregon, built in 1955. It carries a Low hazard potential classification.
About Pierce Reservoir
The primary purpose of Pierce Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by W. V. Johnston (private). It impounds the Dry Creek near Eagle Point.
The dam stands 32 feet tall and stretches 1,138 feet across, creates a reservoir covering 23 acres, has a maximum storage capacity of 250 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1955, 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 10/13/2015. That was over 10 years ago.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Oregon |
| County | Jackson |
| Nearest City | Eagle Point |
| River/Stream | Dry Creek |
| Coordinates | 42.33070, -122.73482 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 29 ft |
| Dam Length | 1,138 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Max Storage | 250 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 400 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | W. V. JOHNSTON |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 10/13/2015 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OR00139 |
| Federal ID | OR00139 |
| More Info | State Dam Safety Program |