Fall Creek Keystone Ave. Dam (In-Channel) Reservoir Report
Last Updated: December 16, 2025
Fall Creek Keystone Ave.
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Summary
Dam (In-Channel) is a vital structure located in Marion, Indiana, serving as a key component of the local water supply system. This concrete dam stands at a height of 7 feet and spans a length of 240 feet, with a storage capacity of 225 acre-feet. Situated on Fall Creek, the dam plays a crucial role in managing water resources in the region, with a drainage area of 312.1 square miles.
Despite being classified as having a low hazard potential, the dam's condition assessment in 2002 rated it as fair, indicating the need for ongoing monitoring and maintenance. The last inspection in 2017 revealed that the dam was in satisfactory condition, but with a high risk assessment level of 2, highlighting the importance of continued oversight and risk management measures. With the dam being state-regulated and inspected regularly by the Indiana Department of Natural Resources, residents can rest assured that steps are being taken to ensure the safety and functionality of this essential infrastructure.
Overall, Fall Creek Keystone Ave. Dam (In-Channel) serves as a crucial piece of the water supply puzzle in Marion, Indiana, providing storage and regulation capabilities for Fall Creek. With a focus on water supply as its primary purpose, this dam's role in managing water resources in the area cannot be understated. As climate change impacts continue to affect water availability and quality, maintaining and monitoring structures like this dam will be essential in ensuring the resilience of the local water system for years to come.
Dam Length |
240 |
Dam Height |
7 |
River Or Stream |
FALL CREEK |
Primary Dam Type |
Concrete |
Drainage Area |
312.1 |
Nid Storage |
225 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
7 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
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