Keene Lake Water Conservation Structure #2 Reservoir Report

Last Updated: December 5, 2025

Keene Lake Water Conservation Structure #2, also known as Hil22, is a state-owned water conservation structure located in Temple Terrace, Florida.


°F

°F

mph

Wind

%

Humidity

Summary

This structure on the Keene Lake river is designed primarily for flood risk reduction, as well as for recreation and water supply purposes. With a dam height of 7 feet and a maximum storage capacity of 1750 acre-feet, this earth dam plays a crucial role in managing water resources in the area.

The structure has a spillway width of 14 feet and is classified as having a significant hazard potential with a fair condition assessment. Although the last inspection was conducted in April 2016, the dam meets state regulation and has state jurisdiction, permitting, inspection, and enforcement procedures in place. The structure's hydraulic height of 5 feet and surface area of 32 acres contribute to its ability to handle moderate risk with a DSAC-assigned rating of 3.

Keene Lake Water Conservation Structure #2 serves as a vital component of water resource management in Hillsborough County, Florida, under the supervision of the Florida Department of Environmental Protection (FDEP). With its capacity for flood risk reduction, recreational opportunities, and water supply support, this state-regulated dam plays a key role in ensuring the safety and sustainability of water resources in the region.

Dam Length

30

Dam Height

7

River Or Stream

KEENE LAKE

Primary Dam Type

Earth

Surface Area

32

Hydraulic Height

5

Nid Storage

1750

Outlet Gates

None

Hazard Potential

Significant

Nid Height

7
       
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.