Custom Marine Construction by Marinus — dredging contractor, Miami
Spud barge with long-reach excavator dredging on Biscayne Bay
Dredging · Miami-Dade & Broward

Shallow dock? We deepen it.

Residential slip dredging, marina and yacht-club basins, commercial and industrial berth dredging, canal maintenance — the full path from survey to signed-off as-built.

Silt doesn’t stop coming, so the boat keeps getting harder to bring in.

Every canal and slip in South Florida fills in. First you feel it on the way out at low tide, then you start planning trips around the tide chart, then you stop using the boat. Dredging resets that — and done properly it lasts years.

We work mechanically from the water: a spud barge holds position, a long-reach excavator cuts the profile, material is loaded into sealed bins and hauled to an approved upland disposal site. A turbidity curtain stays deployed the whole time, so the neighbors’ water stays clean and your permit stays valid.

Because we run our own equipment, we can get to offer to residential & commerical that larger outfits turn down — and we don’t wait on a subcontractor’s schedule to mobilize.

Precision by survey

Dredging technology

We model the bottom before we start and re-survey when we finish. That means an honest quantity up front instead of a guess, a cut that stays inside the permitted envelope, and a defensible as-built at close-out.

Method Mechanical · long-reach
Platform Spud barge + push boat
Containment Turbidity curtain
Disposal Approved upland site

What we dredge

Private slips & docks

Waterfront homes on Miami-Dade County canals. Small quantities, tight access, careful work next to your seawall and dock piles.

Marinas & yacht clubs

Marina dredging slip by slip or basin-wide, phased around your tenants so the fuel dock and the transient slips keep earning while we work.

Commercial & industrial berths

Barge berths, tug and workboat slips, terminal faces and river frontage on the Miami River and New River. Draft restored to the loaded condition your operation actually needs.

Yacht yards & shipyards

Launch berths, haul-out wells and yard basins where draft is the whole business. Sequenced around haul-outs so the yard never stops working.

Canals & access channels

Shared canal and channel maintenance for associations and neighbours who need depth restored along a whole run, not just one lot.

Municipal & institutional

City and county waterway maintenance, public boat basins and bid work — surveyed quantities, documented disposal, and an as-built you can put in the file.

In plain language

If this is what you typed into Google, you’re in the right place.

These are the exact problems people call us about. Find yours, and skip straight to the quote form.

“My boat can’t get out at low tide”

Classic silted-in residential slip. We survey the bottom, tell you how many cubic yards it takes to get back to usable depth, and dredge it.

“How do I deepen the water at my dock?”

Dock dredging in Miami means a permitted cut to a design depth — not a shovel and a good idea. We handle the permit and the cut together.

“I bought a bigger boat and the slip is too shallow”

Tell us the draft you need. We work backwards from the boat to a permitted depth, allowing for tide and squat.

“Our marina slips are silting in”

Marina and yacht-club basin dredging, phased slip by slip so tenants, the fuel dock and transient business keep operating.

“Our berth won’t take a loaded barge anymore”

Commercial berth and terminal-face dredging on the Miami River and Biscayne Bay. Draft restored to your loaded condition, documented.

“The whole canal is too shallow, not just my lot”

Canal and access-channel maintenance dredging for HOAs and neighbour groups — one permit, one mobilization, cost split across the run.

“How much does dredging cost in Miami?”

It’s driven by cubic yards, access and disposal. We won’t quote blind — send the address and we’ll give you a real number after we look.

“Do I need a DERM permit to dredge?”

In Miami-Dade tidal water, effectively always. See how the DERM Class I process works on our permitting page.

Get started

Deepen your slip, dock, waterfront, or berth.

Call us or send an inquiry. Tell us roughly how shallow it is and how soon you need it usable — we’ll tell you what it takes.

305 · 429 · 4539 info@seawallfl.com Mon–Fri · 9am–4pm 1000 NW North River Dr, Unit 106
Miami, FL 33136
Send an inquiry
Or call 305-429-4539 · Mon–Fri 9am–4pm