Eola Hills Reservoir dam
Eola Hills Reservoir
Eola Hills Reservoir, located in Polk County, Oregon, is a private water resource managed primarily for irrigation purposes. This Earth-type dam stands at 19 feet high, with a hydraulic height of 14 feet, and was completed in 1985. The reservoir has a storage capacity of 37 acre-feet, with a normal storage level of 36.7 acre-feet, covering a surface area of 5.7 acres.
The dam on Eola Hills Reservoir is regulated by the Oregon Water Resources Department, with regular inspections and enforcement measures in place to ensure its safety and compliance with state regulations. The reservoir is situated on King Creek, a tributary to an unnamed river, and has a drainage area of 0.23 square miles. In case of emergencies, the reservoir has slide gates for water release.
Despite being classified as having a significant hazard potential, the condition assessment of Eola Hills Reservoir is currently not rated. The last inspection was conducted in October 2018, with a scheduled frequency of every 3 years. While the Emergency Action Plan status and risk management measures are not specified in the data, the reservoir serves as a vital resource for irrigation in the region, showcasing the intersection of water resource management and climate considerations in the area.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Eola Hills Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Willamette River At Salem | 10,500 cfs | → |
| South Yamhill River At Mcminnville | 310 cfs | → |
| Zollner Creek Near Mt Angel | 320 cfs | → |
| Abiqua Creek At Silverton | 74 cfs | → |
| Silver Creek At Silverton | 52 cfs | → |
| Pudding River Near Woodburn | 159 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Eola Hills Reservoir.
Track Eola Hills Reservoir in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Eola Hills Reservoir
Where does the data for Eola Hills Reservoir come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Significant hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Eola Hills Reservoir.