Unnamed Dam Reservoir Report

Last Updated: December 5, 2025

Unnamed Dam, located in Green Cove Springs, Florida, is a privately-owned structure designed for flood risk reduction.


°F

°F

mph

Wind

%

Humidity

Summary

The dam, also known as Cla09, spans 1423 feet in length with a height of 10 feet and a hydraulic height of 8 feet. It serves the primary purpose of flood risk reduction while also supporting recreation and water supply needs in the area.

Managed by the Florida Department of Environmental Protection (FDEP), the dam is state-regulated and undergoes regular inspections to ensure its fair condition and significant hazard potential are addressed. With a storage capacity of 31 acre-feet and covering a surface area of 3 acres, the dam plays a crucial role in managing the flow of the unnamed pond and its associated drainage area of 0.03 square miles.

Despite its fair condition assessment in 2017, the dam poses a moderate risk, prompting the need for ongoing risk management measures. With its uncontrolled spillway type and no outlet gates, regular monitoring and maintenance are essential to mitigate potential hazards and ensure the continued effectiveness of this vital flood risk reduction infrastructure.

Dam Length

1423

Dam Height

10

River Or Stream

UNNAMED POND

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

8

Drainage Area

0.03

Nid Storage

31

Outlet Gates

None

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

10
       
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.