Bonneville Locks And Dam dam
Bonneville Locks And Dam
Bonneville Locks and Dam, located on the Columbia River in Oregon, is a federal structure owned and operated by the US Army Corps of Engineers. Completed in 1938, this gravity dam serves primarily for navigation purposes, with hydroelectric power generation, recreation, and other functions also in play. The dam stands at a height of 197 feet and stretches 2,477 feet in length, with a spillway width of 1,450 feet. It features two locks, each 675 feet long and 85 feet wide, facilitating the passage of vessels along the river.
With a very high risk assessment due to the inherent hazards associated with dam operations, the US Army Corps of Engineers diligently manages flood risks at Bonneville Locks and Dam. This entails ongoing monitoring of the dam's condition, prioritizing risk-reducing activities, and engaging with local emergency managers and the public to ensure readiness for any potential emergencies. Regular maintenance and repairs are conducted to ensure the dam's structural integrity and functionality. These efforts underscore the importance of proactive risk management and preparedness in safeguarding the surrounding communities and the environment from potential 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 Bonneville Locks And Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bull Run River Near Multnomah Falls | 156 cfs | → |
| North Fork Bull Run River Near Multnomah Falls | 27 cfs | → |
| Fir Creek Near Brightwood | 14 cfs | → |
| Bull Run River At Lower Flume Nr Brightwood | 24 cfs | → |
| Blazed Alder Creek Near Rhododendron | 18 cfs | → |
| South Fork Bull Run River Near Bull Run | 49 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Bonneville Locks And Dam.
Boat launches
- Columbia Trail, North Bonneville
- Port Of Cascade Locks
- Doetsch Ranch Road, Stevenson
- Northeast Bucher Lane 60505, Cascade Locks
- Dalton Point, Bridal Veil
- Lost Lake Resort
Campgrounds
- Eagle Creek Overlook Group Campground
- Eagle Creek Campground
- Port Authority - Cascade Locks Marine Park
- Tenas Camp
- Beacon Rock State Park Campground
- Beacon Rock Moorage Camp
Paddle runs
- Hemlock Road Bridge To Gifford Pinchot Nf Boundary
- Headwaters In Sw1/4 Of Sec 13, T6n, R7e To Hemlock Road Bridge In Nw1/4 Of Sec 26, T4n, R7e
- Confluence Clear And Coe Creeks To Mt. Hood Nf Boundary
- Sandy River
- Headwaters In Sw 1/4 Of Sec 8, T4n, R6e To Gifford Pinchot Nf Boundary
- Mt. Hood Wilderness Boundary To Confluence With Sandy River
Track Bonneville Locks 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 Bonneville Locks And Dam
Where does the data for Bonneville Locks 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 Bonneville Locks And Dam.