East Lenox Reservoir Dam Reservoir Report
Last Updated: December 13, 2025
East Lenox Reservoir Dam, located in Maloy, Iowa, is a crucial structure owned by the local government and regulated by the Iowa Department of Natural Resources.
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Summary
Completed in 1913, this earth dam stands at a height of 25 feet and spans 700 feet along the TR-Middle Platte River. It serves as a water supply source, with a storage capacity of 510 acre-feet and a normal storage level of 220 acre-feet.
The dam's spillway, of uncontrolled type, is 24 feet wide, and the structure is inspected every five years to ensure its satisfactory condition. With a significant hazard potential and moderate risk assessment, the dam plays a vital role in managing water resources in the area. Despite its age, East Lenox Reservoir Dam continues to meet regulatory standards and fulfill its primary purpose of water supply for the local community.
As a key component in the water management infrastructure of Adams County, Iowa, East Lenox Reservoir Dam remains a critical asset for ensuring water availability and safety in the region. With its strategic location and effective design, this dam exemplifies the importance of maintaining and monitoring essential water resource structures for the benefit of both people and the environment.
Year Completed |
1913 |
Dam Length |
700 |
Dam Height |
25 |
River Or Stream |
TR-MIDDLE PLATTE RIVER |
Primary Dam Type |
Earth |
Surface Area |
31 |
Drainage Area |
1.18 |
Nid Storage |
510 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
25 |
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.
East Lenox Reservoir Dam