Mississippi River Lock And Dam 6 dam
Mississippi River Lock And Dam 6
Mississippi River Lock and Dam 6, also known as Pool 6, is a federal structure located in Trempealeau, Wisconsin, along the Mississippi River. Completed in 1936 by the US Army Corps of Engineers, this concrete dam serves primarily for navigation purposes, with additional benefits for recreation. The dam stands at a height of 17 feet, with a hydraulic height of 26 feet and a structural height of 40 feet, stretching over a length of 4865 feet and holding a volume of 271,700 cubic feet.
With a significant hazard potential, the dam has a controlled spillway type with a width of 1750 feet. It features one lock measuring 600 feet in length and 110 feet in width, facilitating the passage of vessels along the river. Managed by the US Army Corps of Engineers, the dam undergoes regular inspections and has an emergency action plan in place to address flood risks and ensure public safety. The agency works actively to monitor and address any potential issues to maintain the dam's structural integrity and manage water levels effectively.
In response to the varying challenges posed by severe weather events and water inflow, the US Army Corps of Engineers implements risk management measures to mitigate potential flood risks associated with the dam. By engaging with local emergency managers and the public, regularly updating emergency action plans, and prioritizing maintenance activities, the agency strives to ensure the safety and functionality of Mississippi River Lock and Dam 6.
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 Mississippi River Lock And Dam 6 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Black River Near Galesville | 1,290 cfs | → |
| Mississippi River At Winona | 38,900 cfs | → |
| Trempealeau River At Dodge | 593 cfs | → |
| La Crosse River Near La Crosse | 425 cfs | → |
| Root River Near Houston | 829 cfs | → |
| Trempealeau River At Arcadia | 555 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mississippi River Lock And Dam 6.
Boat launches
- Mississippi River -- Trempealeau Landing
- Long Lake -- Landing
- Mississippi River -- Round Lake -- Access
- Trempealeau River -- Perrot State Park
- Black River -- Access Nr State Hwy 35
- River Street Dakota
Campgrounds
- Perrot State Park
- Perrot State Park Campground
- Group Tent Campsite
- Pla-Mor Campground
- Great River Bluffs State Park
- Cart In Sites
Fishing spots
- Franklin St. Fishing Pier
- Huff Street Fishing Pier
- Dacota Street Fishing Pier
- New Albin Big Lake
- French Creek
- Pine Creek
Track Mississippi River Lock And Dam 6 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 Mississippi River Lock And Dam 6
Where does the data for Mississippi River Lock And Dam 6 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 Significant 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 Mississippi River Lock And Dam 6.