Tieton dam
Tieton
Tieton Dam, located in Naches, Washington, is a concrete type dam that was completed in 1925 by the Bureau of Reclamation. With a height of 196 feet and a storage capacity of 203,600 acre-feet, the dam serves multiple purposes including flood risk reduction, irrigation, and recreation. It is situated on the Tieton River, within the Yakima County, and is managed by the Federal agency, Bureau of Reclamation.
The Tieton Dam plays a crucial role in managing water resources in the region, with a normal storage capacity of 198,000 acre-feet and a maximum discharge rate of 45,700 cubic feet per second. The dam is designed to mitigate high hazard potential and is regularly inspected by the Bureau of Reclamation to ensure its structural integrity and safety. Despite its age, the dam continues to serve its primary purpose of flood risk reduction effectively, showcasing the enduring importance of water infrastructure in the face of changing climate patterns.
In addition to its engineering significance, the Tieton Dam offers opportunities for recreational activities and serves as a vital resource for the local community. With its strategic location and impressive hydraulic features, the dam stands as a testament to the resilience and adaptability of water management systems in the Pacific Northwest. As climate change poses new challenges, the Tieton Dam remains a critical asset for ensuring water security and environmental sustainability in the region.
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 Tieton -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| American River Near Nile | 338 cfs | → |
| Cowlitz River At Packwood | 1,690 cfs | → |
| Klickitat River Above West Fork Near Glenwood | 328 cfs | → |
| Toppenish Creek Near Fort Simcoe | 36 cfs | → |
| Ahtanum Creek At Union Gap | 79 cfs | → |
| Yakima River Above Ahtanum Creek At Union Gap | 4,520 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Tieton.
Boat launches
Campgrounds
- South Fork Group Campground
- Hause Creek Campground
- Hause Creek
- Lost Lake Camping Area
- South Fork Tieton Dispersed Camping
- Lower Bakeoven Dispersed Camping Area
Paddle runs
- Headwaters In Se1/4 Of Sec 9, T14n, R11e To Goat Rocks Wilderness Boundary
- Headwaters At American Lake To Confluence With Ranier Fork
- Mt. Ranier Np/Gifford Pinchot Nf Boundary To Confluence With Clear Fork Cowlitz River
- Goat Rocks Wilderness Boundary To Confluence With Muddy Fork Cowlitz River
- Confluence With Ranier Fork To Confluence With Bumping River
- Tatoosh Wilderness Boundary To Confluence With Clear Fork Cowlitz River
Track Tieton 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 Tieton
Where does the data for Tieton 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 Tieton.