Pine Hollow dam
Pine Hollow
Nestled in the picturesque region of Tygh Valley, Oregon, Pine Hollow is a vital water resource managed by the local government. This earth dam, completed in 1969, stands at a height of 65 feet and serves primarily for irrigation purposes, with a storage capacity of 5,300 acre-feet. The dam spans 800 feet and regulates flow from Badger Creek and Pine Hollow Creek, contributing to a surface area of 235 acres and a drainage area of 4.5 square miles.
With a high hazard potential but a satisfactory condition assessment, Pine Hollow is a critical infrastructure for water management in the area. The dam's spillway is uncontrolled, with a maximum discharge capacity of 1,060 cubic feet per second. Despite its age, Pine Hollow continues to meet regulatory standards set by the Oregon Water Resources Department, with regular inspections ensuring its operational integrity. The dam's location and design make it a key player in water distribution for irrigation and recreation purposes, highlighting its importance in sustaining the local ecosystem and economy.
For water resource and climate enthusiasts, Pine Hollow represents a harmonious blend of engineering prowess and environmental stewardship. Managed by the Natural Resources Conservation Service, this dam not only provides essential water storage for irrigation but also offers recreational opportunities for the community. As climate change poses challenges to water management, Pine Hollow stands as a resilient structure, ready to adapt and continue serving the needs of the region. Its strategic location and design showcase a thoughtful approach to balancing human needs with ecological sustainability, making it a shining example of water infrastructure in Oregon's diverse landscape.
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 Pine Hollow -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Beaver Creek | 35 cfs | → |
| Columbia River At The Dalles | 146,000 cfs | → |
| Oak Grove Fork Near Government Camp | 71 cfs | → |
| Warm Springs River Near Kahneeta Hot Springs | 232 cfs | → |
| Mosier Creek Near Mosier | 4 cfs | → |
| Hood River At Tucker Bridge | 389 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pine Hollow.
Boat launches
- Pine Hollow Reservoir South Shore
- Rock Creek Campground
- Wapanitia Primitive North Launch
- Wapanitia Primitive South Launch
- Harpham Flat Boat Launch
- Harpham Flat
Campgrounds
- Little Badger
- Little Badger Campground
- Hunt Park - Wasco County Fairgrounds
- Rock Creek Reservoir
- Rock Creek Reservoir Campground
- Bonney Crossing Campground
Track Pine Hollow 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 Pine Hollow
Where does the data for Pine Hollow 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 High 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 Pine Hollow.