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Causeway Island · Your waterfront project

Causeway Island & Harbour Isle planning

Seawall planning on Causeway Island and Harbour Isle in Fort Pierce: inlet currents, condo association walls, CCCL and city permits on Seaway Drive.

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Describe your project on this page ↓
Causeway Island waterfront mapNorth is up. The accent marker identifies the selected community. Choose a community label to open its local guide. Nearby guide links also appear below the map.Causeway IslandSouth Beach, Fort PierceDowntown Fort PierceMoore’s CreekCauseway Island waterfront mapNorth is up. The accent marker identifies the selected community. Choose a community label to open its local guide. Nearby guide links also appear below the map.Causeway IslandSouth Beach, Fort PierceDowntown Fort PierceMoore’s Creek
Land: U.S. Census Bureau St. Lucie and Martin county geometry minus Census water features. Points: City of Port St. Lucie GIS, Census places, St. Lucie County GIS and USGS names. Snapshot: October 25, 2026. General reference only; not a survey, flood map or service boundary.

Get to know your waterfront

Causeway Island sits in the lagoon just west of the Fort Pierce Inlet along Seaway Drive. County records show Harbour Isle at Hutchinson Island and its east and west condominiums there, inside Fort Pierce city limits, and the city lists Causeway Park among its parks.

USGS Geographic Names (islands; channels) · St. Lucie County Subdivisions and Municipal Boundaries layers · About Fort Pierce

Inlet tides about twice the North Fork’s

Inlet-adjacent walls see stronger tidal flows than the river canals. NOAA’s Fort Pierce Inlet station shows a mean tide range of about 2 feet, double the North Fork’s.

Condominium associations typically own these walls, so the seawall belongs in the reserve and inspection discussion. Datums for 8722213, Fort Pierce Inlet, Binney Dock FL · Condominiums and Cooperatives — FAQs

What could the work cost?

Ask for dive or low-tide inspection of the toe, and for scour protection priced separately from wall repair.

Published examples are attributed context from Treasure Coast and nearby South Florida sources, not a Port St. Lucie average or a quote. Your wall needs a property-specific written scope.

Compare quotes and plan a budget →

Find the relevant permits and records

Causeway Island researched starting points
Starting pointWhat to resolvePrepare and look up
Fort Pierce Building Department
Seawall or dock permit with the city’s marine checklist.
Engineering pre-approval, Marine Permit Application, sealed plans, debris affidavit. 772-467-3718.
Building · Checklist for Seawall Permits · Marine Permit Application - Current FBC
Army Corps, FDEP and SFWMD
Approval letters the city checklist requires.
Flood-zone sites also get a floodplain review; flood questions 772-467-3714.
Checklist for Seawall Permits · Flood Protection
FDEP state lands (Indian River Lagoon preserve)
Consent to use state-owned bottom land in an Indian River Lagoon aquatic preserve.
Docks limited to 500 ft or 20% of waterbody width; access walkways 4 ft wide.
Florida Statutes s. 258.39 - Boundaries of preserves · Fla. Admin. Code R. 18-20.004 - Management Policies, Standards, and Criteria · Fla. Admin. Code R. 62-302.700 - Special Protection, Outstanding Florida Waters, Outstanding National Resource Waters

Prepare the questions for the responsible office.

A Causeway Island checklist

Use these steps to gather records and prepare a property-specific conversation. Public records and project references do not describe the condition of your wall.

  1. Pull the permit history

    Search the address on the city or county permit portal for seawall, dock and lift permits and their final inspections before the first site visit.

  2. Confirm association ownership

    Identify which walls and docks belong to the condominium.

    St. Lucie County Subdivisions and Municipal Boundaries layers

  3. Inspect at low tide

    The larger inlet tide range exposes more of the wall at low water.

    Datums for 8722213, Fort Pierce Inlet, Binney Dock FL

  4. Note anchoring rules

    Anchoring Limitation Areas in the inlet took effect June 1, 2026.

    Anchoring Limitation Areas (ALA)

Start with what you know

Get help with your Causeway Island seawall

Tell us what has changed and how to reach you. We’ll help you work out the next step; photos and measurements can follow later.

Getting your form ready…

Causeway Island project questions

Is Harbour Isle in Fort Pierce?

Yes; county records place it inside city limits.

St. Lucie County Subdivisions and Municipal Boundaries layers

Which manatee rules apply?

St. Lucie County’s zones in Rule 68C-22.008; a 2025 state review placed one inlet site in a slow speed zone. Check posted zones for your location.

Chapter 68C-22 Manatee Protection Rules (rule list) · Board of Trustees Agenda Item 1B - La Entrada Del Mar Association, Lease No. 560010408

Keep planning

Prepare for an assessmentCompare repair and replacementReview the project scope

Nearby waterfront guides

South Beach, Fort Pierce, Downtown Fort Pierce, North Hutchinson Island

View the local guide directory.

Show sourcesHide sources
  1. USGS Geographic Names (islands; channels)Source reviewed 2026-10-25
  2. St. Lucie County Subdivisions and Municipal Boundaries layersSource reviewed 2026-10-25
  3. About Fort PierceSource reviewed 2026-10-25
  4. Datums for 8722213, Fort Pierce Inlet, Binney Dock FLSource reviewed 2026-10-25
  5. Condominiums and Cooperatives — FAQsSource reviewed 2026-10-23 · official indexed text
  6. BuildingSource reviewed 2026-10-25
  7. Checklist for Seawall PermitsSource reviewed 2026-10-25
  8. Marine Permit Application - Current FBCSource reviewed 2026-10-25
  9. Flood ProtectionSource reviewed 2026-10-25
  10. Florida Statutes s. 258.39 - Boundaries of preservesSource reviewed 2026-10-25
  11. Fla. Admin. Code R. 18-20.004 - Management Policies, Standards, and CriteriaSource reviewed 2026-10-25
  12. Fla. Admin. Code R. 62-302.700 - Special Protection, Outstanding Florida Waters, Outstanding National Resource WatersSource reviewed 2026-10-25
  13. Anchoring Limitation Areas (ALA)Source reviewed 2026-10-25
  14. Chapter 68C-22 Manatee Protection Rules (rule list)Source reviewed 2026-10-25
  15. Board of Trustees Agenda Item 1B - La Entrada Del Mar Association, Lease No. 560010408Source reviewed 2026-10-25
Get seawall help(772) 272-8686