Summary
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.
Year Completed |
1925 |
Dam Length |
920 |
Dam Height |
196 |
River Or Stream |
TIETON RIVER |
Primary Dam Type |
Concrete |
Surface Area |
2525 |
Hydraulic Height |
196 |
Drainage Area |
119000 |
Nid Storage |
203600 |
Structural Height |
319 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
319 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
South Fork Group Campground
Hause Creek Campground
Hause Creek
Lost Lake Camping Area
South Fork Tieton Dispersed Camping
Lower Bakeoven Dispersed Camping Area
Tieton