W.p. Franklin Lock and Dam

W.p. Franklin Lock and Dam is a dam located in Lee County, Florida, built in 1965. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planOn file
Last inspection03/09/2021
Height31 ft
Built196561 years ago

Dam profile

NID height · 31 ft
31 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

31 ft tall and 1,700 ft long, taller than 72% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About W.p. Franklin Lock and Dam

The primary purpose of W.p. Franklin Lock and 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 USACE - Jacksonville District (federal). It impounds the Caloosahatchee River (c-43) near Fort Myers Shores Duc Area.

The dam stands 31 feet tall and stretches 1,700 feet across, creates a reservoir covering 800 acres, has a maximum storage capacity of 32,266 acre-feet, and collects water from a drainage area of 839 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 03/09/2021.

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Location

StateFlorida
CountyLee
Nearest CityFort Myers Shores Duc Area
River/StreamCaloosahatchee River (c-43)
Coordinates26.72230, -81.69307

Physical Characteristics

NID Height31 ft
Dam Length1,700 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage32,266 acre-ft
Max Storage32,266 acre-ft
Normal Storage26,404 acre-ft
Surface Area800 acres
Drainage Area839 sq mi
Max Discharge28,900 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerUSACE - Jacksonville District
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection03/09/2021
Emergency Action PlanYes

Identifiers

NID IDFL00310
Federal IDFL00310
More InfoState Dam Safety Program