Depere Lock And Dam Reservoir Report
Nearby: Lamers Pond Springwater Dam
Last Updated: December 13, 2025
Located on the Fox River in DePere, Wisconsin, the Depere Lock and Dam is a federal structure managed by the US Army Corps of Engineers to primarily reduce flood risks in the area.
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Summary
Completed in 1929, this concrete gravity dam spans 1,700 feet and stands at a structural height of 17 feet. With a maximum discharge capacity of 22,500 cubic feet per second, the dam also serves purposes such as fish and wildlife pond management, hydroelectric power generation, navigation, and recreation.
A recent risk assessment conducted in 2015 categorized the dam as having a low risk of causing loss of pool that could impact navigation and hydropower. The assessment identified three primary risk factors, including instability of the masonry wall, seepage through the embankment, and instability of the concrete dam. To manage these risks, the USACE, State, and hydropower company collaborate on regular inspections, maintenance, and emergency action plans. Proactive measures, such as replacing walkways and gates, repairing embankments, and transferring lock operations to the State, have increased the dam's reliability and long-term resilience.
Despite its significant hazard potential, the Depere Lock and Dam is closely monitored and maintained to ensure continuous operation and public safety. Through ongoing risk management measures, regular inspections, and coordinated emergency response plans, the dam continues to play a vital role in flood control, water management, and hydropower generation in the region. More information about the dam's water discharges and updates can be found on the USACE website to keep the public informed and engaged.
Year Completed |
1929 |
Dam Length |
1700 |
River Or Stream |
FOX |
Primary Dam Type |
Concrete |
Surface Area |
536 |
Length Of Locks |
146 |
Hydraulic Height |
8 |
Drainage Area |
6430 |
Nid Storage |
10790 |
Structural Height |
17 |
Hazard Potential |
Significant |
Foundations |
Rock |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
East River At Ct Highway Zz Near Greenleaf
|
1cfs |
Fox River At Oil Tank Depot At Green Bay
|
6470cfs |
Duck Creek Near Howard
|
27cfs |
Fox River At Appleton
|
3320cfs |
Kewaunee River Near Kewaunee
|
17cfs |
Oconto River Near Oconto
|
375cfs |
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.
Depere Lock And Dam
Fox River -- Bomier Launch