Evans Tieton Pond Dam dam
Evans Tieton Pond Dam
Evans Tieton Pond Dam, located in Tieton, Washington, is a privately owned earth dam primarily used for irrigation purposes. Completed in 2004 by PLSA Engineers, this dam stands at a structural height of 35 feet and has a hydraulic height of 33 feet. It has a storage capacity of 38 acre-feet, with a normal storage level of 27 acre-feet, covering a surface area of 2.1 acres and serving a drainage area of 0.43 square miles.
Situated on an unnamed tributary of Cowiche Creek, Evans Tieton Pond Dam is regulated by the Washington Department of Ecology and undergoes state inspection and enforcement. With a high hazard potential but a satisfactory condition assessment, the dam has a history of regular inspections every five years, with the last one conducted in October 2019. Despite being a private structure, the dam plays a crucial role in supporting irrigation activities in the surrounding area and contributes to water resource management in Yakima County.
In the event of an emergency, the dam has an Emergency Action Plan (EAP) that was last revised in November 2019. While it meets guidelines, further risk assessments and management measures may be needed to ensure the safety and integrity of Evans Tieton Pond Dam for both water resource and climate enthusiasts who value sustainable water management practices.
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 Evans Tieton Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ahtanum Creek At Union Gap | 64 cfs | → |
| Yakima River Above Ahtanum Creek At Union Gap | 2,620 cfs | → |
| Yakima River At Umtanum | 1,880 cfs | → |
| Toppenish Creek Near Fort Simcoe | 33 cfs | → |
| American River Near Nile | 254 cfs | → |
| Klickitat River Above West Fork Near Glenwood | 268 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Evans Tieton Pond Dam.
Boat launches
- North Wenas Road 16361, Selah
- Rovetto Road 2, Yakima
- Canyon Road 8681-9129, Yakima
- Roza Recreation Site
- State Route 821 Kittitas County
Campgrounds
- Windy Point Campground
- Hanging Tree Dispersed Camping
- Lost Lake Camping Area
- Hause Creek
- Hause Creek Campground
- Ahtanum Camp - State Forest
Paddle runs
- Yakima River Segment 2
- Yakima River Segment 1
- Confluence With Ranier Fork To Confluence With Bumping River
- Headwaters In Se1/4 Of Sec 9, T14n, R11e To Goat Rocks Wilderness Boundary
- Headwaters At American Lake To Confluence With Ranier Fork
- Confluence With Chinook Creek To Southern Boundary Of Mount Rainier National Park
Track Evans Tieton Pond Dam 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 Evans Tieton Pond Dam
Where does the data for Evans Tieton Pond Dam 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 Evans Tieton Pond Dam.