West Bank Project Reservoir dam
West Bank Project Reservoir
The West Bank Project Reservoir in Pasco, Washington, is a private irrigation reservoir designed by SCM Consultants and regulated by the Washington Department of Ecology. Completed in 2003, this Earth-type dam has a hydraulic height of 34.2 feet and a storage capacity of 171 acre-feet. Serving as a crucial water resource for irrigation purposes, the reservoir is located along an unnamed tributary to the Snake River in Franklin County, Washington.
With a surface area of 7.9 acres and a drainage area of 0.01 square miles, the West Bank Project Reservoir plays a vital role in supporting agricultural activities in the region. Its high hazard potential is mitigated by regular inspections, with the last assessment conducted in October 2018 and deemed satisfactory. The reservoir's Emergency Action Plan (EAP) was last revised in November 2019, ensuring that appropriate measures are in place to address any potential risks or emergencies that may arise.
Managed by a private owner, the West Bank Project Reservoir is an essential component of the local water infrastructure, providing reliable water supply for irrigation while adhering to state regulations and enforcement measures. Its strategic location and design contribute to the efficient management of water resources in the area, demonstrating the importance of sustainable water management practices in the face of changing climate conditions.
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 West Bank Project Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Walla Walla River Near Touchet | 210 cfs | → |
| Yakima River At Kiona | 1,120 cfs | → |
| Umatilla River Near Umatilla | 210 cfs | → |
| Mill Creek At Walla Walla | 20 cfs | → |
| Mill Creek At Five Mile Rd Br Nr Walla Walla | 634 cfs | → |
| Umatilla R At W Reservation Bndy Nr Pendleton | 136 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near West Bank Project Reservoir.
Boat launches
- Columbia Plateau Trail, Pasco
- Columbia Plateau Trail State Park Franklin County
- South 2nd Street 577, Burbank
- Us 12 Walla Walla County
- East Donelson Road 222798-224804, Kennewick
Track West Bank Project 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 West Bank Project Reservoir
Where does the data for West Bank Project 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 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 West Bank Project Reservoir.