Eola Hills Reservoir is an earth dam located in Polk County, Oregon, built in 1985. It carries a Significant hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 100 ft long. 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 Eola Hills Reservoir
The primary purpose of Eola Hills Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Contact Allen Holstein (private). It impounds the King Creek, Trib to near Salem.
The dam stands 19 feet tall and stretches 100 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 37 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1985, the structure is 41 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 10/18/2018.
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Location
| State | Oregon |
| County | Polk |
| Nearest City | Salem |
| River/Stream | King Creek, Trib to |
| Coordinates | 45.04377, -123.12878 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 100 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 37 acre-ft |
| Max Storage | 37 acre-ft |
| Normal Storage | 36 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 73 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Contact Allen Holstein |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/18/2018 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OR01657 |
| Federal ID | OR01657 |
| More Info | State Dam Safety Program |