Emerichsville (In-Channel) Dam Reservoir Report

Last Updated: December 16, 2025

Emerichsville (In-Channel) Dam, also known as Indy Lake Emerichsville Dam, is a stone dam located on the White River in Marion, Indiana.


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Summary

This local government-owned structure serves a primary purpose of "Other" and is not regulated by the state. With a height of 10 feet and a length of 360 feet, the dam provides a NID storage capacity of 918 acre-feet, contributing to a low hazard potential and fair condition assessment.

Although Emerichsville Dam does not have a spillway, outlet gates, or locks, it plays a crucial role in water resource management within the area. The dam's presence helps to control flow and regulate water levels in the White River, impacting the surrounding drainage area of 1287.33 square miles. Despite being last inspected in 2017, with an inspection frequency of 5 years, the dam is deemed to have a high risk factor (2) and may require enhanced risk management measures in the future to ensure its continued safety and functionality for climate enthusiasts and water resource advocates alike.

Dam Length

360

Dam Height

10

River Or Stream

WHITE RIVER

Primary Dam Type

Stone

Drainage Area

1287.33

Nid Storage

918

Outlet Gates

None

Hazard Potential

Low

Nid Height

10
       
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.