Wilmot Pond Dam Reservoir Report

Last Updated: December 5, 2025

Wilmot Pond Dam, also known as Rider Lake Dam, is a significant earth dam located in Noble, Indiana, along the Tippecanoe River.


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Summary

Completed in 1940, this state-regulated structure stands at a height of 20 feet and stretches 350 feet in length, with a storage capacity of 238 acre-feet. The dam serves a primary purpose classified as 'Other', and its poor condition assessment indicates a need for maintenance and upgrades.

Despite being a state-owned dam, Wilmot Pond Dam lacks federal agency involvement in its design, construction, and regulation. With a significant hazard potential and a moderate risk assessment score, the dam poses a potential threat to its surrounding area in the event of failure. The last inspection in July 2020 revealed the dam's poor condition, highlighting the urgent need for risk management measures and emergency action planning to ensure public safety and environmental protection.

Located in a picturesque setting, Wilmot Pond Dam's presence on the Tippecanoe River adds to the natural beauty of the region. As water resource and climate enthusiasts, it is crucial to monitor and advocate for the proper maintenance and operation of such vital structures to safeguard our water resources and respond effectively to potential emergencies.

Year Completed

1940

Dam Length

350

Dam Height

20

River Or Stream

TIPPECANOE RIVER

Primary Dam Type

Earth

Surface Area

10.97

Hydraulic Height

20

Drainage Area

35.2

Nid Storage

238

Structural Height

20

Outlet Gates

None

Hazard Potential

Significant

Foundations

Rock, 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.