Nashville City Reservoir 2 Dam Reservoir Report
Last Updated: December 25, 2025
Nashville City Reservoir 2 Dam, also known as Nashville Reservoir, is a key water resource structure located in Washington, Illinois.
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Summary
This earth dam was completed in 1935 and stands at a height of 18 feet, with a length of 260 feet. Its primary purpose is listed as "Other", with a storage capacity of 73 acre-feet and a maximum storage of 73 acre-feet.
The dam is regulated by the Illinois Department of Natural Resources (IDNR) and has a low hazard potential. It is equipped with an uncontrolled spillway and outlet gates, with a spillway width of 16 feet. The dam is situated on the Trib Nashville Creek and serves as a critical infrastructure for water management in the area.
With a moderate risk assessment rating of 3, the Nashville City Reservoir 2 Dam plays a crucial role in water resource management and climate resilience efforts in the region. Its inspection frequency is every 5 years, with the last inspection conducted in July 2015. As a vital component of the local government's water infrastructure, this dam ensures the safety and sustainability of water resources for the community.
Year Completed |
1935 |
Dam Length |
260 |
Dam Height |
18 |
River Or Stream |
TRIB NASHVILLE CREEK |
Primary Dam Type |
Earth |
Nid Storage |
73 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
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.
Nashville City Reservoir 2 Dam