Mcnary Lock And Dam - Kennewick Levee 17b dam
Mcnary Lock And Dam - Kennewick Levee 17b
Mcnary Lock and Dam, also known as Kennewick Levee 17b, is a federal-owned structure located in Oregon along the Columbia River. Built in 1952, its primary purpose is flood risk reduction, making it a crucial asset for water resource and climate enthusiasts. The dam stands at 30 feet high and is primarily made of earth, showcasing its engineering prowess in managing water levels along the river.
Managed by the US Army Corps of Engineers, the dam not only serves to reduce flood risks but also plays a vital role in monitoring and maintaining its structural integrity. With a high hazard potential, the dam undergoes regular inspections and risk assessments to ensure it meets safety guidelines and is prepared for any potential emergencies. The Corps works closely with local emergency managers to develop evacuation plans and continually update the emergency action plan for the dam.
As a key player in managing water resources in the region, Mcnary Lock and Dam exemplifies the importance of infrastructure in mitigating flood risks and ensuring the safety of surrounding communities. With a commitment to risk management measures and ongoing maintenance, the dam serves as a critical component in safeguarding against the impacts of severe weather events and unpredictable water levels, making it a fascinating subject for water resource and climate enthusiasts alike.
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 - Kennewick Levee 17b -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Yakima River At Kiona | 1,330 cfs | → |
| Umatilla River Near Umatilla | 214 cfs | → |
| Walla Walla River Near Touchet | 234 cfs | → |
| Yakima River At Mabton | 4,700 cfs | → |
| Columbia River Below Priest Rapids Dam | 161,000 cfs | → |
| Mill Creek At Walla Walla | 24 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mcnary Lock And Dam - Kennewick Levee 17b.
Boat launches
- Road 54 605, Pasco
- Sacajawea Heritage Trail Tri-Cities
- Columbia Park Trail 1106, Richland
- Columbia Park Trail 1455, Richland
- Columbia Point Marina Park
- Riverfront Trail, Richland
Track Mcnary Lock And Dam - Kennewick Levee 17b 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 - Kennewick Levee 17b
Where does the data for Mcnary Lock And Dam - Kennewick Levee 17b 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 - Kennewick Levee 17b.