Seawall Repair in Miami Beach, FL

Miami Beach is its own city, separate from Miami. It incorporated as a town in 1915 and became a city in 1917. Much of it was built by dredging Biscayne Bay. The Venetian Islands (except Belle Isle), the Sunset Islands, and much of Normandy Isle are all fill. The average elevation is about 4.4 feet, and the city has added dozens of pumps and raised roads to deal with tidal flooding. It has about 55 miles of seawall, and only about 5 miles are public. Projects here are run by our Miami seawall repair team, the county hub across the bay that coordinates city and county permits.

What Are Miami Beach's Seawall Height Rules?

The city's seawall guidance sets clear numbers:

• New seawalls must be built to at least 5.7 feet NAVD, or 4 feet NAVD if designed to be raised to 5.7 later.
• A substantial repair is any repair costing $300 or more per linear foot, and it must meet the 5.7-foot standard.
• Overtopping that floods neighboring property triggers elevation and maintenance requirements.
• Cited owners get 60 days to show progress and 730 days to finish repairs.

That makes scope important. A targeted repair below the threshold keeps your wall working. A larger one means raising it.

Which Agencies Review a Miami Beach Seawall?

• City of Miami Beach Building Department: the building permit and code compliance.
• Miami-Dade DERM: a Class I permit for work in tidal water. Its short form covers repair or replacement at mean high water or within 18 inches waterward.
• FDEP and the Army Corps: in environmentally sensitive areas.

We prepare the city and county filings together.

How Do Repairs Work on Fill-Built Islands?

The islands are dredged bay bottom, so the soil behind most walls is loose fill that tide can carry out through small joints.

• Void fill and joint sealing: NCFI-certified polyurethane injection fills hollows and seals joints from the land side. It's often the most efficient way to fix a leaking wall that's still high enough.
• Caps and cracks: our Miami bulkhead repair crew rebuilds caps and seals cracked panels.
• Leaning walls: seawall reinforcement across Miami-Dade adds anchors to walls tipping toward the water.

If your wall is low enough to overtop, a cap raise to the city standard may be the right call. We'll lay out the options and how each affects the substantial-repair math.

Did Irma Damage Miami Beach Seawalls?

Less than you might think. The National Weather Service found about 2 to 3 feet of inundation on Miami Beach, confined to the immediate beachfront. Here the bigger threat is the steady one: high tides that seep through joints and top low walls.

How Is Miami Beach Different From Nearby Towns?

South of the city, Key Biscayne seawall repair serves another separate village using the same county Class I permit. Up the coast, Sunny Isles Beach seawalls are in Miami-Dade too. Just over the county line, Hallandale Beach seawall repair falls under Broward County's rules.

Request a free inspection or call 866-398-9323. Licensed in Florida (CBC1267322), serving FL, GA, and SC since 1996.

If your property is a little further along the coast, our page on Homestead seawall repair explains how walls are inspected and permitted in Miami-Dade County.