M-5 Dam

M-5 Dam is an earth dam located in Lake County, Florida. It carries a Significant hazard potential classification and has a fair condition assessment.

About M-5 Dam

The primary purpose of M-5 Dam 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 Lake County Water Authority (local government). It impounds the Palatlakaha River near Mascotte.

The dam stands 11 feet tall and stretches 100 feet across, creates a reservoir covering 326 acres, and has a maximum storage capacity of 1,498 acre-feet.

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. The most recent inspection on record was 04/25/2016.

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Significant HazardFair ConditionEmergency Action Plan: No

Location

StateFlorida
CountyLake
Nearest CityMascotte
River/StreamPalatlakaha River
Coordinates28.67877, -81.88424

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Height11 ft
Dam Length100 ft

Storage & Hydraulics

NID Storage1,498 acre-ft
Max Storage1,498 acre-ft
Normal Storage1,053 acre-ft
Surface Area326 acres
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerLAKE COUNTY WATER AUTHORITY
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection04/25/2016
Emergency Action PlanNo

Identifiers

NID IDFL20502
Federal IDFL20502
More InfoState Dam Safety Program

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