Lake Armistead

Lake Armistead is an other dam located in Hillsborough, Florida, built in 1972. It carries a Significant hazard potential classification and has a fair condition assessment.

About Lake Armistead

The primary purpose of Lake Armistead is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Swfwmd (local government). It impounds the Lake Armistead/rocky Creek near Citrus Park.

The dam stands 7 feet tall and stretches 35 feet across, creates a reservoir covering 33 acres, and has a maximum storage capacity of 6,000 acre-feet. Completed in 1972, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/26/2024.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateFlorida
CountyHillsborough
Nearest CityCitrus Park
River/StreamLake Armistead/rocky Creek
Coordinates28.10000, -82.56000

Physical Characteristics

Dam TypeOther
NID Height7 ft
Dam Height5 ft
Dam Length35.7 ft
Year Completed1972 (54 years old)

Storage & Hydraulics

NID Storage6,000 acre-ft
Max Storage6,000 acre-ft
Normal Storage4,785 acre-ft
Surface Area33 acres
Max Discharge238 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerSWFWMD
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection11/26/2024
Emergency Action PlanYes

Identifiers

NID IDFL12009
Federal IDFL12009
More InfoState Dam Safety Program

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