Summary
Completed in 1923, this historic structure stands at a height of 55 feet and has a length of 2589 feet. With a maximum storage capacity of 11400 acre-feet and a drainage area of 4891 square miles, Jim Falls plays a crucial role in water resource management in the region.
Managed by the Federal Energy Regulatory Commission, Jim Falls has a controlled spillway with a width of 266 feet and 13 Tainter (radial) outlet gates. The dam is classified as having a high hazard potential, with a very high risk assessment score. Despite its age, the condition assessment of Jim Falls is not available, indicating the need for further inspection and evaluation to ensure its structural integrity and safety. Climate and water resource enthusiasts will find Jim Falls to be a fascinating example of early hydroelectric infrastructure in the United States.
With its scenic location and dual purposes of hydroelectric power generation and recreation, Jim Falls offers a unique blend of engineering marvel and natural beauty. The dam's historic significance, coupled with its role in water management and energy production, makes it a noteworthy site for those interested in the intersection of water resources, climate, and infrastructure development. As efforts continue to monitor and maintain the dam's safety, Jim Falls remains an important landmark in Wisconsin's water resource landscape.
Year Completed |
1923 |
Dam Length |
2589 |
Dam Height |
55 |
River Or Stream |
Chippewa River |
Primary Dam Type |
Gravity |
Surface Area |
996 |
Drainage Area |
4891 |
Nid Storage |
11400 |
Outlet Gates |
Tainter (radial) - 13 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
55 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chippewa River At Chippewa Falls
|
1460cfs |
Flambeau River Near Bruce
|
616cfs |
Red Cedar River Near Colfax
|
593cfs |
Jump River At Sheldon
|
155cfs |
Chippewa River Near Bruce
|
668cfs |
Hay River At Wheeler
|
235cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Lake Wissota State Park Campground
Lake Wissota State Park
Brunet Island State Park Campground
Fair Hill County Campground
Fair Hill Campgounds
Jim Falls
Chippewa River -- Access Off 189th St (North Of Lake Wissota)