Greenville New City Dam Reservoir Report

Last Updated: December 5, 2025

The Greenville New City Dam, also known as Governor Bond Lake Dam, is a significant earth dam located in Greenville, Illinois.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1969, this dam serves primarily for recreation purposes, offering a serene and scenic setting for water activities. With a height of 40 feet and a length of 1200 feet, the dam creates a storage capacity of 22,400 acre-feet and a surface area of 900 acres.

Situated on the Kingsbury Branch Shoal Creek, the Greenville New City Dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its safety and functionality. With a significant hazard potential, the dam's spillway is uncontrolled, allowing for a maximum discharge of 15,568 cubic feet per second. The dam's risk assessment is moderate, highlighting the importance of proper risk management measures to prevent any potential emergencies.

Overall, the Greenville New City Dam stands as a vital water resource in the area, providing both recreational opportunities and serving as a water supply source. Its picturesque location and functional design make it a key feature in the local landscape, attracting water resource and climate enthusiasts to explore and appreciate its significance in sustaining the surrounding environment.

Year Completed

1969

Dam Length

1200

Dam Height

40

River Or Stream

KINGSBURY BRANCH SHOAL CREEK

Primary Dam Type

Earth

Surface Area

900

Drainage Area

34.5

Nid Storage

22400

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

40
       
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.