Tenoroc Lake 5a Reservoir Report

Last Updated: December 5, 2025

Tenoroc Lake 5a, located in Polk, Florida, is a state-regulated water resource managed by the Florida Fish and Wildlife Conservation Commission.


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Summary

The dam, completed in 1950, serves a primary purpose of tailings storage and is classified as an earth dam with a structural height of 23 feet. With a storage capacity of 10,500 acre-feet and a surface area of 628 acres, the lake plays a crucial role in flood control and water management for the surrounding area.

Despite being rated as having a low hazard potential, Tenoroc Lake 5a is considered to have a very high risk due to its location and potential impact in the event of a failure. The controlled spillway, with a width of 8 feet, helps to manage water levels and discharge, while the dam's stone core and soil foundation provide structural stability. Regular state inspections and enforcement ensure the dam's integrity and safety, with the last inspection conducted in 2006.

Enthusiasts of water resources and climate in the area will appreciate the significance of Tenoroc Lake 5a as a vital component of the local hydrological system. Its role in managing water levels, flood control, and environmental conservation underscores the importance of responsible stewardship and regulation. As climate change continues to impact water resources, the maintenance and monitoring of structures like Tenoroc Lake 5a become increasingly crucial in ensuring the resilience and sustainability of the region's water supply and ecosystems.

Year Completed

1950

Dam Length

16600

Dam Height

20

River Or Stream

SADDLE CREEK

Primary Dam Type

Earth

Surface Area

628

Hydraulic Height

15

Drainage Area

0.98

Nid Storage

10500

Structural Height

23

Hazard Potential

Low

Foundations

Soil

Nid Height

23
       
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.