Mcnary Lock And Dam - Pasco Levee 17a dam
Mcnary Lock And Dam - Pasco Levee 17a
Mcnary Lock and Dam - Pasco Levee 17a, located on the Columbia River in Oregon, serves as a vital flood risk reduction infrastructure owned and operated by the US Army Corps of Engineers. Completed in 1952, this earth dam stands at a height of 30 feet and is a key component in managing water levels along the river. With 12 associated structures, including levees and other support systems, the dam plays a crucial role in protecting the surrounding areas from potential flooding events.
The dam's hazard potential is classified as high, requiring regular inspections and risk management measures to ensure its structural integrity and functionality. The US Army Corps of Engineers actively monitors the dam's condition, prioritizes maintenance activities, and collaborates with local emergency managers to develop emergency action plans and evacuation procedures. Despite the inherent risks associated with dams, the agency remains committed to enhancing public awareness, preparedness, and response capabilities to mitigate potential threats and safeguard the community against flood-related emergencies.
In addition to its flood risk reduction purpose, Mcnary Lock and Dam - Pasco Levee 17a plays a critical role in water resource management and climate resilience efforts in the region. As part of a comprehensive strategy to address varying water levels and discharge patterns, the dam's operation is closely monitored and adjusted as needed to balance flood control, water storage, and environmental considerations. With ongoing risk management efforts in place, the dam continues to serve as a vital asset in protecting communities and ecosystems from the impacts of extreme weather events and 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 Mcnary Lock And Dam - Pasco Levee 17a -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Yakima River At Kiona | 1,120 cfs | → |
| Umatilla River Near Umatilla | 210 cfs | → |
| Walla Walla River Near Touchet | 210 cfs | → |
| Yakima River At Mabton | 4,700 cfs | → |
| Columbia River Below Priest Rapids Dam | 158,000 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 Mcnary Lock And Dam - Pasco Levee 17a.
Boat launches
- Sacajawea Heritage Trail Tri-Cities
- Columbia Park Trail 1455, Richland
- Road 54 605, Pasco
- Columbia Point Marina Park
- Columbia Park Trail 1106, Richland
- Riverfront Trail, Richland
Track Mcnary Lock And Dam - Pasco Levee 17a 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 Mcnary Lock And Dam - Pasco Levee 17a
Where does the data for Mcnary Lock And Dam - Pasco Levee 17a 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 Mcnary Lock And Dam - Pasco Levee 17a.