Palm City seawall planning
Seawall planning in Palm City: South Fork canals, Lighthouse Point, the C-44 and Lake Okeechobee releases, C-23, Martin County permits and shoreline rules.
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Get to know your waterfront
Palm City is an unincorporated Martin County community of about 25,900 residents where the North Fork, South Fork, St. Lucie Canal (C-44) and creeks such as Mapps, Danforth and Bessey meet. Jenkins Point in Palm City marks part of the North Fork aquatic preserve’s southern boundary.
TIGERweb Census 2020 Census Designated Places layer (POP100, HU100 fields) · USGS NHD flowlines · North Fork, St. Lucie Aquatic Preserve
Discharges, salinity and surge
Lake Okeechobee releases reach the South Fork through the C-44, so salinity, sediment and algae swings are part of waterfront life. During Nicole, officials reported water intrusion into some homes in the Lighthouse Point area.
The C-23 (St. Lucie–Martin county line canal) is an SFWMD work of the district with structure S-48 near its mouth; structures in its right-of-way need a 40E-6 permit. Congressman Mast Demands a Halt to Lake Okeechobee Discharges After Traces of Blue-Green Algae Are Found in the St. Lucie Estuary · Tropical Storm Nicole: Live updates, what to know Thursday about storm's impact to Martin County (Nov. 10-11, 2022) · Works of the District Subject to Chapter 40E-6, F.A.C. (Right of Way Occupancy Permits)
What could the work cost?
Replacement of permitted walls goes to the county Building Department; ask for elevation and drainage options if your lot took water in Nicole.
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
| Starting point | What to resolve | Prepare and look up |
|---|---|---|
Martin County Building Department | Repair or replacement of a previously permitted seawall; docks, lifts and pilings. | Survey dated after Oct. 4, 2002 with NAVD elevations, sealed drawings, DEP permit or exemption. 772-288-5916. |
Martin County Growth Management | Shoreline Stabilization Permit for a new seawall, riprap, retaining wall or living shoreline. | Part 1 determination letter, then the permit; new seawall SSP $1,840 plus $390 review. env@martin.fl.us. |
South Florida Water Management District | Right of Way Occupancy Permit for structures in or across District canals (C-23, C-24, C-25). | Locate the 40-foot maintenance strip from top of bank on your survey. |
A Palm City 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.
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.
Identify your water
South Fork, North Fork, C-44 or a creek: each has different exposure.
Check the C-23 right-of-way
Canal-front lots on the C-23 may need an SFWMD permit.
Works of the District Subject to Chapter 40E-6, F.A.C. (Right of Way Occupancy Permits)
Record storm water levels
Note high-water marks from storms for the designer.
Get help with your Palm City 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.
Palm City project questions
Is Harbour Ridge in Palm City?
No. Harbour Ridge is in unincorporated St. Lucie County despite Palm City mailing addresses.
St. Lucie County Subdivisions and Municipal Boundaries layers
Does the C-44 reservoir help?
SFWMD’s completed C-44 Reservoir and treatment area stores 60,500 acre-feet of local basin runoff to improve estuary salinity.
Keep planning
Nearby waterfront guides
Stuart, North River Shores, Harbour Ridge, Tesoro & Southbend
Show sourcesHide sources
- TIGERweb Census 2020 Census Designated Places layer (POP100, HU100 fields)Source reviewed 2026-10-25
- USGS NHD flowlinesSource reviewed 2026-10-25
- North Fork, St. Lucie Aquatic PreserveSource reviewed 2026-10-25
- Congressman Mast Demands a Halt to Lake Okeechobee Discharges After Traces of Blue-Green Algae Are Found in the St. Lucie EstuarySource reviewed 2026-10-25
- Tropical Storm Nicole: Live updates, what to know Thursday about storm's impact to Martin County (Nov. 10-11, 2022)Source reviewed 2026-10-25
- Works of the District Subject to Chapter 40E-6, F.A.C. (Right of Way Occupancy Permits)Source reviewed 2026-10-25
- Residential Seawall ChecklistSource reviewed 2026-10-25
- Shoreline Stabilization Permitting (SSP) Application Help DocumentSource reviewed 2026-10-25
- Environmental Applications and Permits Fee ScheduleSource reviewed 2026-10-25
- Fla. Admin. Code R. 40E-6.041 - Consent RequiredSource reviewed 2026-10-25
- Fla. Admin. Code R. 40E-6.011 - Policy and PurposeSource reviewed 2026-10-25
- St. Lucie County Subdivisions and Municipal Boundaries layersSource reviewed 2026-10-25
- Indian River Lagoon-South C-44 Reservoir and STASource reviewed 2026-10-25