Lateral Struct#1 Reservoir Report

Last Updated: December 17, 2025

Lateral Struct#1, also known as Lateral L Stru, is a key irrigation structure located in Sebastian, Florida.


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Summary

Constructed in 1962 by designer R. D. Carter, this stone dam stands at a height of 13 feet and spans 30 feet in length. With a normal storage capacity of 730 acre-feet and a maximum capacity of 1096 acre-feet, this structure plays a crucial role in flood risk reduction and irrigation practices in the region.

Managed by the Natural Resources Conservation Service, Lateral Struct#1 is regulated by the state of Florida and undergoes regular inspections to ensure its structural integrity. With a low hazard potential and a condition assessment of "Not Rated," this dam continues to serve its primary purpose effectively. The surrounding area, with a drainage area of 7.1 square miles, benefits from the water storage and management provided by this important infrastructure.

Although last inspected in 1994, Lateral Struct#1 remains a vital component of the water resource infrastructure in Indian River County, Florida. With its storage capacity, flood risk reduction capabilities, and irrigation support, this dam continues to play a significant role in water management in the region. As climate change impacts water resources, structures like Lateral Struct#1 become even more critical for sustainable water use and climate resilience efforts.

Year Completed

1962

Dam Length

30

Dam Height

13

River Or Stream

CANAL LATERAL L

Primary Dam Type

Other

Surface Area

84

Drainage Area

7.1

Nid Storage

1096

Hazard Potential

Low

Foundations

Soil

Nid Height

13
       
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.