Izaak Walton Lake Reservoir Report
Nearby: Twin Beach Dam Jon Bowles Lake
Last Updated: December 22, 2025
Izaak Walton Lake, also known as Carpenter's Lake, is a private water resource located in Clay, Indiana.
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Summary
Managed by the Indiana Department of Natural Resources, this recreational lake was completed in 1934 and serves as a popular spot for outdoor enthusiasts to enjoy activities such as fishing and boating. With a surface area of 8.09 acres and a maximum storage capacity of 83 acre-feet, the lake offers a tranquil escape for visitors seeking to connect with nature.
Despite its picturesque setting, Izaak Walton Lake has been flagged with significant hazard potential and poor condition assessment, indicating a need for maintenance and potential safety concerns. The dam stands at a height of 25 feet and has a length of 365 feet, with a hydraulic height matching the structural height. The surrounding Otter Creek and drainage area of 0.15 square miles contribute to the lake's ecosystem and water flow. Regular inspections are conducted to monitor the dam's integrity, with the last assessment taking place in December 2020.
As climate change continues to impact water resources, it is essential for stakeholders to prioritize the upkeep and management of structures like Izaak Walton Lake to ensure the safety of both the environment and nearby communities. With its rich history and recreational value, this lake serves as a reminder of the delicate balance between human enjoyment and environmental stewardship in the face of evolving climate challenges.
Year Completed |
1934 |
Dam Length |
365 |
Dam Height |
25 |
River Or Stream |
OTTER CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.09 |
Hydraulic Height |
25 |
Drainage Area |
0.15 |
Nid Storage |
83 |
Structural Height |
25 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wabash River At Terre Haute
|
2250cfs |
Big Raccoon Creek At Coxville
|
128cfs |
Eel River At Bowling Green
|
145cfs |
Wabash River At Montezuma
|
2290cfs |
Mill Creek Near Cataract
|
57cfs |
Big Raccoon Creek Near Fincastle Ind
|
89cfs |
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.
Izaak Walton Lake