Sa 9 S.R. Reservoir Report

Last Updated: December 6, 2025

Sa 9 S.R., located in Hamilton, Florida, is a privately owned earth dam constructed in 1978 on the Suwannee River for tailings purposes.


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Summary

With a height of 26 feet and a hydraulic height of 21 feet, the dam spans 6500 feet in length and has a storage capacity of 3200 acre-feet. The dam's spillway, measuring 64 feet in width, is of the controlled type, with a maximum discharge capacity of 220 cubic feet per second.

Despite being classified as having a low hazard potential, Sa 9 S.R. is recognized for its high risk assessment rating, with a very high risk level assigned to the structure. The dam's condition assessment is noted as "Not Rated," with the last inspection conducted in December 1998. Although the dam meets state regulatory requirements for permitting, inspection, and enforcement, there are no specific risk management measures or emergency action plans reported for the site.

Given its critical location on the Suwannee River and the potential risks associated with its current condition, Sa 9 S.R. serves as a focal point for water resource and climate enthusiasts concerned with the safety and sustainability of dam structures in Florida. Further monitoring and evaluation of the dam's condition, as well as the development of comprehensive risk management strategies, may be essential to ensure the long-term resilience of this important water management infrastructure.

Year Completed

1978

Dam Length

6500

Dam Height

26

River Or Stream

SUWANNE RIVER

Primary Dam Type

Earth

Surface Area

137

Hydraulic Height

21

Drainage Area

0.21

Nid Storage

3200

Structural Height

30

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
Seasonal Comparison

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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.