Boat lift repair in Key Largo

Common boat lift faults

Stop using the lift if you see frayed cables or the boat sits unevenly.

• Motor hums but the lift does not move
• Lift raises unevenly or one side drops
• Frayed, kinked or flattened cables
• Grinding from the gearbox or pulleys
• Corroded switches and wiring

Lift setbacks by type

Monroe County sets side setbacks by lift type: 7.5 ft for elevator lifts, 5 ft for personal watercraft lifts up to 1,500 lb, and 10 ft for a floating lift set along the shore. A four-post cradle lift is allowed only on a lot at least 70 ft wide on a man-made waterway at least 60 ft wide.

A repair keeps the lift where it is; moving or enlarging it means meeting today's rule.[1]

Floating lifts and docks need deep water

Floats are allowed in Key Largo only over water at least 4 ft deep at mean low water. Floating lifts and vessel platforms must also stay off benthic resources and out of manatee zones, be secured to a fixed dock, and keep the whole structure within 25% of the navigable width.

Floating lifts need that water depth at low tide.[1]

10% of the water, 25% with the boat

Monroe County Code 118-12(m) keeps a Key Largo dock to 10% of the waterbody width, measured mean low water to mean low water, and the dock together with the moored boat and any lift to 25% of the navigable width. On a 50 ft canal that is a 5 ft dock.[1]

What makes Key Largo different

The special exception application asks owners to describe the submerged lands the dock crosses, such as sand, seagrass or coral, and the minimum extra length needed to reach adequate water depth. The site plan must be prepared by a Florida registered architect, engineer or landscape architect and show the mean high water line and shoreline setbacks.[2]

Sanctuary, seagrass and manatees

Projects inside the Florida Keys National Marine Sanctuary needed prior Sanctuary approval under SPGP VI. The same permit let boat lifts and minor structures in Monroe County go into existing boat slips without a seagrass survey. All in-water work follows the state manatee conditions.[3][4]

Permits in Key Largo

• Monroe County Planning and Environmental Resources Department: Dock length special exceptions under County Code section 118-12(m)(15).
• Florida Keys National Marine Sanctuary: The Sanctuary starts at mean high water, so Key Largo canal and bay work is inside it; SPGP VI required its prior approval.
• Florida DEP or South Florida Water Management District: State permit or exemption, which Monroe County needs to see before it issues a Notice to Proceed for docks, seawalls and ramps.
• US Army Corps of Engineers, Jacksonville District: Federal permit, also required before the County's Notice to Proceed.

What causes most failures

In salt water, galvanic corrosion attacks metal parts, which is why sacrificial zinc anodes need regular replacement. Cables should be checked for fraying, corrosion, kinks, flattened sections and uneven tension, and pulleys and gearboxes need lubrication.[6]

Repair or replace the lift?

If the frame and beams are sound, replacing the motor, cables or gearbox is usually far cheaper than a new lift, which ThePricer puts at $7,000 to $14,000 installed for a 10,000 lb four-post model in South Florida.[7]

Frequently asked questions