Twin Falls Auxiliary Dike dam
Twin Falls Auxiliary Dike
Located on the Menominee River in Florence, Wisconsin, the Twin Falls Auxiliary Dike is a gravity dam completed in 1912 with a primary purpose of hydroelectric power generation. This structure, with a height of 30 feet and a storage capacity of 9750 acre-feet, serves as a crucial component of the region's water resource management system. The dam not only supports hydroelectric activities but also offers recreational opportunities for visitors in the area.
Managed by the Federal Energy Regulatory Commission, this high-hazard potential dam has a history dating back over a century and remains a key player in the sustainable use of water resources in the region. With a normal storage capacity of 9750 acre-feet and a surface area of 960 acres, the Twin Falls Auxiliary Dike plays a vital role in regulating the flow of the Menominee River and ensuring water security for surrounding communities. As a public utility structure, it reflects the collaboration between federal agencies and local stakeholders in managing water resources for both economic and ecological benefits.
As climate change poses new challenges to water resource management, the Twin Falls Auxiliary Dike stands as a testament to the ongoing efforts to adapt and innovate in the face of evolving environmental conditions. With its long history of service and its strategic location on the Menominee River, this gravity dam continues to be a symbol of resilience and sustainability in the realm of water infrastructure. For water resource and climate enthusiasts, the Twin Falls Auxiliary Dike offers a fascinating case study in the intersection of hydroelectric power generation, recreational use, and environmental stewardship.
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 Twin Falls Auxiliary Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Menominee River At Twin Falls Near Iron Mt | 3,420 cfs | → |
| Pine River Below Pine R Powerplant Nr Florence | 452 cfs | → |
| Menominee River Near Florence | 2,130 cfs | → |
| Menominee River At Niagara | 2,950 cfs | → |
| Brule River Near Commonwealth | 777 cfs | → |
| Paint River Nr Alpha | 413 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Twin Falls Auxiliary Dike .
Boat launches
- Twin Falls Flowage -- Access
- Menominee River Access Off Of Romitti Drive
- Lake Antoine Bike Path Iron Mountain
- Lake Antoine Bike Path Dickinson County
- Ellwood Lake -- Access
- North Lake -- Access
Campgrounds
- River Bends Campground
- Summer Breeze Campground
- Glidden Lake State Forest Campground
- New Prospect - Kettle Moraine State Forest
- Gene's Pond State Forest Campground
- Paint River Hills Campground
Fishing spots
Paddle runs
- Brule Lake In Ne1/4 Sec 15, T41n, R13e To Forest Boundary In Se1/4 Sec 31, T41n, R17e
- Mainstem, Easternforest Boundary In Sec 1, T44n, R35w To City Of Crystal Falls
- Forest Road 2156 To Eastern Forest Boundary
- Forest Road 2398 To Eastern Forest Boundary
- Forest Road 2133 To Forest Road 2156
- South Branch--Origin In Sec 25, T38n, R14e To Confluence With Main Branch
Track Twin Falls Auxiliary Dike 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 Twin Falls Auxiliary Dike
Where does the data for Twin Falls Auxiliary Dike 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 Twin Falls Auxiliary Dike .