Dock repair in Miami Beach

Signs your dock needs repair

Fix these early. Salt water and sun speed up every one.

• Soft, split or loose boards
• Wobbly handrails or cleats pulling out
• Pilings with deep cracks or worn at the waterline
• Sagging framing between pilings

Two permits, one elevation certificate

A Miami Beach seawall or dock job needs a City building permit with a site plan, structural plans and an elevation certification, plus Miami-Dade DERM Coastal Resources approval. FDEP and the Army Corps come in where the work reaches state or federal waters, which on the island canals is common.

Like-for-like repairs often take the lighter route; anything bigger gets the full permit.[1]

Bay-side lots and the aquatic preserve

Lots that face open Biscayne Bay rather than a dredged canal sit on the Biscayne Bay Aquatic Preserve, which counts as Outstanding Florida Waters. There the state dock exemption is 500 sq ft of over-water area, and the preserve says manatees move into the bay in the cooler months.

Grass and hard bottom decide where the dock can go and how high it sits.[2][3][4]

Manatee season in the bay

Miami Beach waters are inside Miami-Dade's manatee protection zones under rule 68C-22.025, and the aquatic preserve notes manatees moving into the bay for warmer water in cooler months. Winter pile driving and seawall jobs plan for more 50 ft shutdowns and keep turbidity curtains non-entangling.

Most dock repairs start with the pilings, so the piling rules shape the repair.[5][2][6]

What makes Miami Beach different

The city has about 55 miles of seawall, of which only about 5 miles are publicly owned, so most of it is the responsibility of private owners. Its seawall ordinance dates from Resolution R2016-4009 in May 2016, was strengthened in January 2021 and amended again in July 2025.[1][8]

Groundwater and flooding

The city notes that groundwater rises through the porous bedrock under Miami Beach, so a seawall alone cannot stop flooding. A raised wall stops tidal overtopping; drainage and flood protection handle the rest.[9]

Permits in Miami Beach

• City of Miami Beach Building Department: Building permit with a site plan, structural plans and an elevation certification.
• Miami-Dade DERM, Coastal Resources Section: Class I permit or exemption for seawalls, docks and lifts on the island canals and the bay, issued alongside the City permit. Phone (305) 372-6575.
• Florida DEP or South Florida Water Management District: State review where a dock or wall reaches open Biscayne Bay, part of the aquatic preserve, where FDEP's free online self-certification is not available.
• US Army Corps of Engineers, Jacksonville District: Federal authorisation for work in Biscayne Bay and Indian Creek; we confirm the small-project route since SPGP VI's stated July 2026 expiry.

Which dock repairs need a permit?

Miami-Dade DERM exempts replacing decking or handrails to the original dimensions, removing old piles and dilapidated docks, and replacing fender or mooring piles in the same spot when a contractor with a certificate of competency gives DERM 24 hours' notice. Anything that changes the footprint needs a permit. Your city may still need a building permit.[10]

Repair or rebuild?

If the pilings are sound, new decking and framing are usually good value. If many pilings are failing, a rebuild within 5 ft of the old footprint keeps the state exemption and is often the better long-term choice.[3]

Frequently asked questions