Miami-Dade County · Waterfront
Docks, Seawalls & Dredging in North Miami, FL
North Miami sits on Biscayne Bay, Biscayne Canal and Oleta River, with waterfront homes in Keystone Point and Sans Souci Estates. Langley Coastal builds and repairs docks and pilings, installs boat and PWC lifts, repairs seawalls and performs dredging for property owners in North Miami. Permitting is handled in full.
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Services in North Miami
Every service below has its own page. Five of them have one written for North Miami.
Dock Construction
New docks, complete tear-outs and rebuilds, and worn deck boards replaced.
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Piling Services
Pilings restored where they can be, replaced where they cannot, under a dock, a lift or a boathouse.
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Seawall Construction
Aging walls removed and replaced, designed with licensed engineers.
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Seawall Repair
Inspection with photo and video, then hydraulic cement, forms and rebar, or foam injection.
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Boat Lift Installation
Fitted on a new dock or one you already have, working with the lift manufacturers.
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Boat Lift Maintenance
Cables, drives and lift pilings kept working in salt water.
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Dredging
Depth restored at docks, canals and shorelines. We handle the permitting.
Explore dredging in North MiamiGeneral Construction
The land side of a waterfront property: building, demolition, sitework and pools.
Explore general construction in North MiamiNorth Miami's waterfront
What shapes dock, seawall, and dredging work here. Sources are linked.
Waterways
- Biscayne Bay: the city lies on the bay; Keystone Point and Sans Souci canals open onto it [en.wikipedia.org]
- Biscayne Canal: dug in 1924 to drain Arch Creek farmland; its S-28 flood gate is one of the county's most frequent manatee gathering spots (MPP p.45) [en.wikipedia.org]
- Oleta River: the only natural river in Miami-Dade never dredged or channelized; mouth in Oleta River State Park next to the city [en.wikipedia.org]
- Arch Creek: historic natural limestone bridge site (Arch Creek Memorial Park) [en.wikipedia.org]
Waterfront neighborhoods
- Keystone Point: gated peninsulas with canals to Biscayne Bay, ZIP 33181; the county manatee plan notes it sits due west of Haulover Cut so boats reach the ocean through a short, speed-limited stretch of bay [hoabulletinboard.com]
- Sans Souci Estates: gated bayfront community with deep-water canals [en.wikipedia.org]
Marinas, bridges and inlets
- Oleta River State Park: 1,033 acres on Biscayne Bay next to the FIU campus; kayak rentals and bay beach [en.wikipedia.org]
- Broad Causeway: links North Miami to Bay Harbor Islands; idle-speed zone at the bridge [miamidade.gov]
- Haulover Park / Bill Bird Marina: county marina at 10800 Collins Ave near the inlet: 152 wet slips, 24-hour ramps [miamidade.gov]
Permits and rules in North Miami
Rules change; confirm current North Miami requirements with the authority before work starts.
Miami-Dade County permit authorities that cover North Miami →
- Seawall rule (City of North Miami Building Department (305-895-9820) + Miami-Dade DERM Class I; county Flood Criteria)
- No City of North Miami seawall elevation ordinance was found. [northmiamifl.gov]
- Dock and boat-lift permits
- City of North Miami Building Department (Boat Dock Permit) + Miami-Dade DERM Class I + FDEP / USACE. The city's 2025 Boat Dock Permit intake checklist requires DERM approval, a current signed-and-sealed survey, two sets of sealed plans, a cost affidavit and proof of ownership, with zoning, structural, building and electrical review. [northmiamifl.gov]
Local conditions that matter
Tides, storms and siltation
- North Biscayne Bay seagrass beds and tributaries carry the county's highest manatee densities, and the Biscayne Bay Aquatic Preserve begins at the Oleta River headwaters (MPP pp.19, 32) [miamidade.gov]
On the water
- FAC 68C-22.025: all waters of Biscayne Canal west of the bay shoreline are year-round slow speed, with a seasonal No Entry zone (Nov 15-Apr 30) near salinity structure S-28; the Oleta River is idle speed year-round [law.cornell.edu]
- Idle Speed / No Wake zones also apply to the Oleta River and Upper Oleta River under county Code sec. 7-26 and around the Broad Causeway bridge (MPP pp. [miamidade.gov]
- Boaters from the Keystone Point area heading to south Biscayne Bay have direct access to the Meloy Channel at Broad Causeway (MPP p.67) [miamidade.gov]
Recent Dock Work
North Miami — frequently asked questions
What seawall height rule applies in North Miami?
No City of North Miami seawall elevation ordinance was found. (City of North Miami Building Department (305-895-9820) + Miami-Dade DERM Class I; county Flood Criteria). An inspection of your North Miami seawall, with underwater photos and video, shows whether a repair or a rebuild is the right route. [source]
Who permits a new dock or boat lift in North Miami?
City of North Miami Building Department (Boat Dock Permit) + Miami-Dade DERM Class I + FDEP / USACE. The city's 2025 Boat Dock Permit intake checklist requires DERM approval, a current signed-and-sealed survey, two sets of sealed plans, a cost affidavit and proof of ownership, with zoning, structural, building and electrical review. [source]
Which North Miami neighborhoods do you serve?
Waterfront neighborhoods across North Miami, including Keystone Point and Sans Souci Estates (ZIP 33161, 33181). North Miami is in Miami-Dade County, one of the four counties Langley Coastal serves.
Are there speed or manatee zones near North Miami docks?
FAC 68C-22.025: all waters of Biscayne Canal west of the bay shoreline are year-round slow speed, with a seasonal No Entry zone (Nov 15-Apr 30) near salinity structure S-28; the Oleta River is idle speed year-round That sets how a dredge or barge is scheduled and staged in North Miami. [source]
Does Langley Coastal Construction work in North Miami?
Yes. North Miami is in Miami-Dade County, one of the four counties Langley Coastal Construction serves; call (954) 406-0696 to schedule North Miami work.
Sources for the North Miami facts above are linked inline (18 public pages); they describe North Miami, not Langley projects, and rules change, so confirm with the permitting authority.
Nearby Waterfront Areas We Serve
What North Miami area customers say
Roman & Rutger completed this new dock and sea wall for us and it went flawless. Their team of guys were on site working everyday until the job was finished. Great work, very professional, and a 10/10 job. Thank you guys & highly recommend