Easton Reservoir Report

Last Updated: December 5, 2025

Easton is a dam located in Adams, Wisconsin, along Campbell Creek, with a primary purpose of recreation.


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Summary

Built in 1855, this Earth-type dam stands at a height of 19.5 feet and has a hydraulic height of 14.6 feet, providing a storage capacity of 305 acre-feet. The dam spans 350 feet in length and has a controlled spillway with a width of 34 feet to manage maximum discharges of up to 1020 cubic feet per second.

Despite its age, Easton has been well-maintained and is in satisfactory condition, with a low hazard potential. Regular inspections have been conducted, with the last assessment in February 2016, and a low risk assessment rating of "Very High (1)" due to its critical importance. The dam has seen modifications in 1909 and 2010 to ensure its continued functionality, serving as a key recreational resource for the local community and visitors alike.

Easton remains under the jurisdiction of the Wisconsin Department of Natural Resources (WIDNR), with state permitting, inspection, and enforcement in place to ensure compliance with safety regulations. With its historical significance and continued importance for recreation and water management, Easton stands as a testament to effective dam infrastructure and management practices in the face of evolving climate challenges.

Years Modified

1909 - Other, 2010 - Other

Year Completed

1855

Dam Length

350

Dam Height

19.5

River Or Stream

CAMPBELL CREEK

Primary Dam Type

Earth

Surface Area

24

Hydraulic Height

14.6

Drainage Area

17.6

Nid Storage

305

Structural Height

19.5

Hazard Potential

Low

Foundations

Soil

Nid Height

20
       
Seasonal Comparison

Weather Forecast

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. 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

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, 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.