Trows dam
Trows
Trows is a gravity dam located in Jackson, Wisconsin, on Halls Creek. Completed in 1942, it serves the primary purpose of recreation and has a normal storage capacity of 188 acre-feet. With a height of 26 feet and a length of 150 feet, Trows offers a surface area of 43 acres for outdoor activities and water sports. The dam is regulated by the Wisconsin Department of Natural Resources and undergoes regular inspections to ensure its safety and integrity.
Despite being classified as having a low hazard potential and a fair condition assessment, Trows is considered to have a very high risk level, receiving a rating of 1. Emergency action plans have been prepared and reviewed, although specific details on their content and adherence to guidelines are not provided in the data. The dam has a controlled spillway and a maximum discharge capacity of 7300 cubic feet per second, ensuring proper water management and flood control measures in place to protect downstream areas.
Located within the Detroit District of the US Army Corps of Engineers, Trows is a valuable piece of infrastructure for the local community, offering recreational opportunities while also serving vital water resource management functions. Enthusiasts of water resources and climate will appreciate the significance of Trows in maintaining a balance between human activities and environmental conservation in the region.
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 Trows -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Black River Ds St Hwy 54 @ Black River Falls | 652 cfs | → |
| Black River At Neillsville | 196 cfs | → |
| La Crosse River At Sparta | 209 cfs | → |
| Black River Near Galesville | 1,290 cfs | → |
| Yellow River At Babcock | 49 cfs | → |
| Trempealeau River At Arcadia | 555 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Trows.
Boat launches
- Arnold Creek -- North Arnold Creek Access
- Lake Arbutus -- Access Nr Robin Ln
- Lake Arbutus -- Access Nr Osprey Ln
- Lake Arbutus -- Access Nr Klima Rd
- Black River -- North Arbutus Boat Landing
- Mark Holmgren Memorial Landing -- Access
Campgrounds
- Gile Memorial Village
- Russell Memorial Park
- Russell Memorial Campground
- West Arbutus County Park
- East Arbutus Camp
- Wildcat Mound County Park
Fishing spots
More reservoirs
Track Trows 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 Trows
Where does the data for Trows 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 Low 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 Trows.