Long Lake Flowage Wla dam
Long Lake Flowage Wla
Long Lake Flowage Wildlife Area, located in Sauk County, Wisconsin, is a state-managed water resource offering a variety of recreational opportunities. The earth dam, completed in 1972, stands at a height of 10 feet and spans 3050 feet, creating a reservoir with a storage capacity of 1000 acre-feet and a surface area of 150 acres. The primary purpose of the dam is for recreation, providing a serene and picturesque setting for visitors to enjoy water-based activities.
Maintained by the Wisconsin Department of Natural Resources, Long Lake Flowage WLA is regulated and inspected by state agencies to ensure its safety and functionality. The dam has a low hazard potential and is rated in fair condition, with regular inspections and maintenance efforts in place. Despite its low hazard potential, the area is considered to have a very high risk due to its location and potential impact in case of an emergency. Visitors can rest assured that emergency preparedness measures are in place to mitigate any risks associated with the dam.
For water resource and climate enthusiasts, Long Lake Flowage WLA offers a fascinating glimpse into the management and conservation of a vital natural resource. The controlled spillway and drainage area of 24 square miles contribute to the overall health of the ecosystem, while also providing recreational opportunities for visitors to enjoy. With its rich history and ongoing commitment to safety and conservation, Long Lake Flowage WLA stands as a testament to the importance of responsible water resource management in the face of 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 Long Lake Flowage Wla -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wisconsin River At Muscoda | 10,400 cfs | → |
| Black Earth Creek At Black Earth | 51 cfs | → |
| Brewery Creek-Upstream Site-At Cross Plains | 2 cfs | → |
| East Br Pecatonica River Near Blanchardville | 183 cfs | → |
| Pheasant Branch At Airport Road Nr Middleton | 2 cfs | → |
| Pheasant Branch At Middleton | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Long Lake Flowage Wla.
Boat launches
- Long Lake -- Access
- Bakkens Pond -- Launch
- Wisconsin River -- Otter Creek Landing
- Sneed Creek At High Point Rd
- Smith Slough -- Lone Rock Unit #2
- Cruson Slough -- Lone Rock Unit #1
Campgrounds
- Tower Hill State Park
- Tower Hill State Park Campground
- Avoca Lakeside City Campground
- Twin Valley Campground
- Governor Dodge State Park
- Governor Dodge State Park Campground
Fishing spots
Paddle runs
- Lone Rock To The Confluence Of The Green And Wisconsin Rivers
- Honey Creek (County Road Y On The Southern Bank) To The State Route 130 Highway Bridge Crossing At Lone Rock
- The Big Green River To The River's Mouth At The Mississippi River
- Western Boundary Of Effigy Mounds National Monument To Boundary Of Effigy Mounds National Monument
Track Long Lake Flowage Wla 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 Long Lake Flowage Wla
Where does the data for Long Lake Flowage Wla 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 Long Lake Flowage Wla.