Ice Harbor Lock And Dam dam
Ice Harbor Lock And Dam
Ice Harbor Lock and Dam, also known as Lake Sacajawea, is a federal structure located on the Snake River in Pasco, Washington. Completed in 1962 by the US Army Corps of Engineers, this concrete dam serves primarily for navigation purposes, but also supports fish and wildlife ponds, hydroelectric power generation, and recreational activities. With a hydraulic height of 100 feet and a structural height of 208 feet, the dam spans 2,790 feet in length and has a storage capacity of 406,500 acre-feet.
Managed and operated by the US Army Corps of Engineers, Ice Harbor Lock and Dam poses a high hazard potential due to its limited water storage capacity and the risk of flooding in severe weather events. To address these risks, the Corps implements various risk management measures, including continual monitoring of the dam's condition, prioritizing activities to reduce risks, and engaging with local emergency managers and the public to raise awareness and preparedness for potential dam-related emergencies. Regular maintenance and repairs are also conducted to ensure the dam's structural integrity and functionality.
Despite the risks associated with dams, the US Army Corps of Engineers works diligently to manage flood risks and ensure the safety of Ice Harbor Lock and Dam. By maintaining a proactive approach to monitoring, risk assessment, and emergency preparedness, the Corps aims to mitigate potential hazards and protect downstream communities from the impacts of dam-related emergencies.
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 Ice Harbor Lock And Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Walla Walla River Near Touchet | 244 cfs | → |
| Yakima River At Kiona | 3,110 cfs | → |
| Mill Creek At Walla Walla | 42 cfs | → |
| Umatilla River Near Umatilla | 231 cfs | → |
| Mill Creek At Five Mile Rd Br Nr Walla Walla | 634 cfs | → |
| Mill Creek Near Walla Walla | 60 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Ice Harbor Lock And Dam.
Boat launches
- Columbia Plateau Trail, Pasco
- Columbia Plateau Trail State Park Franklin County
- Us 12 Walla Walla County
- South 2nd Street 577, Burbank
- East Donelson Road 222798-224804, Kennewick
Track Ice Harbor Lock And 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 Ice Harbor Lock And Dam
Where does the data for Ice Harbor Lock And 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 Ice Harbor Lock And Dam.