Middle Fork Of Anderson River - No. 11 Reservoir Report
Last Updated: December 5, 2025
Middle Fork of Anderson River - No.
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Summary
11 is a flood risk reduction dam located in Perry, Indiana, designed by the USDA NRCS and completed in 1992. The dam is owned by the local government and regulated by the Indiana Department of Natural Resources. It serves the primary purpose of flood risk reduction and is classified as an earth dam with a height of 31.6 feet and a storage capacity of 154 acre-feet.
This dam, situated on an unnamed tributary of the Anderson River, has a low hazard potential and is in fair condition as of the last assessment in 2015. With a drainage area of 0.48 square miles and a normal storage capacity of 7 acre-feet, it plays a crucial role in managing water flow and reducing the risk of flooding in the surrounding area. Despite its high risk assessment due to its location, the dam has not undergone significant modifications over the years and is not operated by the US Army Corps of Engineers.
Water resource and climate enthusiasts will find Middle Fork of Anderson River - No. 11 to be a vital infrastructure for flood control in the region, showcasing the collaboration between local government agencies and federal designers to address environmental challenges. Its presence highlights the importance of sustainable water management practices in safeguarding communities against potential hazards, while also serving as a reminder of the ongoing efforts required to maintain and inspect critical infrastructure to ensure public safety and environmental resilience.
Year Completed |
1992 |
Dam Length |
500 |
Dam Height |
31.6 |
River Or Stream |
UNNAMED TRIBUTARY ANDERSON RIVER |
Primary Dam Type |
Earth |
Surface Area |
2.2 |
Drainage Area |
0.48 |
Nid Storage |
154 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Middle Fork Anderson River At Bristow
|
10cfs |
Ohio River At Cannelton Dam At Cannelton
|
45000cfs |
Patoka River At Jasper
|
737cfs |
Blue River Near White Cloud
|
340cfs |
Patoka River At Winslow
|
526cfs |
Buck Creek Near New Middletown
|
4cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Dogwood Loop
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Tipsaw
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Jackpine Loop
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Catbrier Loop
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Goldenrod Loop
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Primrose Loop
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Middle Fork Of Anderson River - No. 11