Repair or replace: the short answer
Short answer: repair a bulkhead when the damage is local and the sheet piles, anchors and toe are sound. Plan a replacement when the wall itself is failing along much of its length. On Choctawhatchee Bay, a new wall may not be allowed to look like the old one.
A bulkhead, or seawall, holds your yard back from the water. Its main parts are the sheet piles or panels driven into the bottom and the concrete cap on top. Tiebacks are rods that tie the wall to a buried anchor called a deadman. The toe is the bottom of the wall at the mud line.
Repair keeps those parts and fixes what failed. Replacement builds a new wall in place of, or just in front of, the old one. Destin and Walton County both limit new vertical walls on the bay, so check the rules before you price a like-for-like wall. Destin bay shoreline zone Walton bay seawall rule
Which signs point to repair, and which to replacement?
Most walls send clear signals. Use this table to sort what you see, then have a professional confirm the cause. A weep hole is a drain hole that lets water out from behind the wall. Filter fabric is the cloth behind the wall that lets water through but holds soil in.
| What you see | Usually points to | What to check first |
|---|---|---|
Hairline cracks in the cap, no movement | Repair | Rust stains, which can mean the steel inside the cap is corroding. |
One sinkhole behind the wall | Repair | Where soil escapes: an open joint, torn filter fabric or scour at the toe. |
Weep holes clogged or missing | Repair | Whether water pressure is building up behind the wall. |
One section leaning after a storm | Either | Whether the tieback and deadman at that section still hold. |
Lean or bow along most of the wall | Replacement | Anchor condition and how deep the sheets are driven. |
Sheets split, rotted or rusted through in many places | Replacement | Age and material. Old wood and thin steel often fail all at once. |
Mud washed out at the toe | Riprap repair, or replacement | Whether the sheets still reach deep enough into firm bottom. |
Water tops the cap in ordinary storms | Depends | Cap elevation in NAVD88 compared with neighbors and flood levels. |
Two or more replacement signs in the same wall usually mean the repair bills will keep coming. Get both options priced before you decide. Our guides to cap and panel repair, sinkholes and soil loss and tiebacks and anchors explain each fix.
What does an engineer check before recommending a path?
A good assessment answers one question: which parts of this wall can be kept, and for how long? Ask for written findings, not a verbal opinion. A bulkhead assessment should cover these points.
- Survey and elevations. Cap, yard and neighbor walls in one datum, usually NAVD88, a fixed survey reference.
- Sheets above and below water. Cracks, holes, rot or rust, including the part hidden at low water.
- Toe and embedment. How much mud has washed away and how deep the sheets still reach.
- Anchors. Digging at one or more tiebacks to see the rod and the deadman.
- Soil and drainage. Voids behind the wall, weep holes and filter fabric.
- Attachments. Docks, lifts and stairs tied into the cap.
- What is in front. Marsh, seagrass or old riprap that will shape the permit.
Compare elevations only when they use the same datum. A cap height quoted against "high tide" cannot be compared with a flood map number. NOAA survey datums
Florida does not license engineers by specialty. An active license does not prove marine experience, so ask for similar bulkhead jobs. Florida engineering board
Why high tide is the wrong yardstick on the bay
Choctawhatchee Bay has almost no tide. NOAA's bay stations show only about half a foot between average high and low water. NOAA bay tide ranges
Storms are what test the wall. FEMA's flood study puts the 1%-annual-chance still water in Okaloosa's bay and bayous at about 6.8 to 9.5 feet NAVD88. Walton's bay figures run about 6.7 to 7.9 feet. Okaloosa flood study Walton flood study
What this means: a cap that sits well above everyday high water can still be low in a storm. During Hurricane Sally in 2020, a 2-foot seawall in Fort Walton Beach was breached. The breach put 2 to 3 feet of water over parts of US 98. NWS Sally report
If you replace the wall, settle the new cap elevation with the engineer before you sign. Our bulkhead height guide explains how to read your survey.
If the wall can be repaired
A repair plan should name the cause, the fix and the length of wall treated. Common repairs on bay walls include:
- Patching or recasting a cracked cap and sealing open joints.
- Filling voids behind the wall and restoring filter fabric and weep holes. See foam and void injection.
- Adding tiebacks or helical anchors where the old ones failed.
- Placing riprap, which is loose rock, at the toe to stop scour.
Repairs still need permits. Destin requires a permit to build, alter or repair a bulkhead or seawall. Destin Building Division
Riprap at the toe of an existing vertical wall has its own state general permit. The rock slope can be no steeper than 2 to 1 and can reach no more than 10 feet out from the toe. DEP riprap general permit Read more about riprap and toe protection.
If the wall must be replaced: the rules that change the design
Replacing a bulkhead here is not always a like-for-like swap. State law, Destin's code and Walton's code all push bay shorelines away from bare vertical walls.
The state restoration exemption
Florida exempts restoring a seawall at its old location, behind it, or within 18 inches in front of it. Coastal rules under Chapter 161 still apply separately. Section 403.813(1)(e)
The state handbook treats restoring a failing wall differently from building out to gain yard. Why you are doing the work, and how much fill goes behind the wall, both matter. ERP Applicant's Handbook
On the bay, expect riprap facing
State law sets a riprap rule for permitted work in estuaries and lagoons. It applies to a repaired or replaced vertical seawall. The law says DEP "shall generally require" that wall to be faced with riprap, or replaced with riprap. A few exceptions apply, such as ports and older man-made canals. Section 373.414(5)
Destin adds its own rule. The rule covers the 100-foot bay shoreline protection zone along Choctawhatchee Bay, Joe's Bayou, Marler Bayou and Indian Bayou. There, bulkheads are allowed only for redevelopment, and only with riprap on the water side. Destin LDC 11.01.10
| Where your wall is | What to expect |
|---|---|
Destin bay and bayou frontage | Riprap on the water side of the new wall. Ask Planning how "redevelopment" applies to your lot. |
Destin marsh areas (Joe's, Marler and Indian bayous, Norriego Point) | No seawall in coastal marsh. An upland retaining wall at least 5 feet behind the marsh instead, with a 150-foot infill exception between existing walls. Destin LDC 11.01.06 |
South Walton on Choctawhatchee Bay | No new vertical walls except infill of up to 150 feet between two existing walls. Revetments, riprap or plants elsewhere. Walton LDC 4.03.03 |
Walton coastal dune lakes | No seawalls, bulkheads, revetments or riprap within 300 feet of the lake. Walton LDC 4.02.03 |
Rocky Bayou east of SR 20 | An aquatic preserve. No new seawall waterward of mean high water (the average high-tide line), but restoring the old wall in place is allowed. Rule 18-20.004 |
Gulf-front, seaward of the CCCL | A DEP coastal permit. The statute's repair exemption does not cover seawalls. Section 161.053 |
Walton's rule speaks of "new" walls and does not say how it treats a full replacement. Ask Planning before design starts. Our Okaloosa County and Walton County guides cover each county, and the bulkhead replacement page covers materials.
Compare repair and replacement on one worksheet
Price both paths against the same survey. Then compare what you get, not just the total.
| Question | Repair path | Replacement path |
|---|---|---|
What stays? | Existing sheets, anchors and most of the cap. | Little or nothing. The old wall is pulled, cut off or left behind the new one. |
Permits | Local permit. State and federal review depend on the work. | Local, state and federal review, with riprap facing likely on the bay. |
Main cost drivers | Feet of wall treated, access and unknowns behind the wall. | Wall height, material, anchors, water access and demolition. |
Main risk | The next weak spot fails soon after. | Higher cost and a longer permit path. |
Cap elevation | Usually stays where it is. | Can be set to a new design height. |
Repair can be the far cheaper path when the main structure is sound. In 2026, Okaloosa County staff put touch-up repairs to a county shoreline in Shalimar at about $50,000. They said keeping the existing seawall would save over $1,000,000. Okaloosa agenda, July 2026
Use the budget planner with your own written prices for both paths.
After Hurricane Isaias: do not let urgency pick the path
Hurricane Isaias came ashore near Destin on October 9, 2026, as a Category 2 storm. Preliminary gauge data show about 3.7 feet at East Pass and 4 feet at Old Pass Lagoon. Both readings are above mean higher high water (MHHW), the average daily high tide. NWS preliminary report
Destin's 60-day storm exemption covers board-for-board dock and fence repairs only. It does not mention seawalls, so plan on a permit for bulkhead work. Destin storm exemption
Stabilize first, decide second. Emergency work should stop further loss. The repair-or-replace decision can wait for a survey and written findings. Destin lets owners rebuild a damaged dock or marine facility at its old size. To qualify, apply for the permit within six months of the damage. Destin LDC 11.05.10
The storm damage guide has a photo checklist and the deadlines that apply now.
Questions to ask before you sign either scope
- Which parts of the wall did you inspect, and which could you not see?
- What caused the damage, and how does this scope stop it from coming back?
- If the wall is repaired now, which part is likely to fail next, and when should it be checked?
- If it is replaced, where will the new wall sit, and will the bay rules require riprap in front?
- What cap elevation, in NAVD88, will the finished wall have?
- Which permits are in the price, and who files them?
- What happens to the dock, lift and utilities during the work?
Tell us what your bulkhead needs and we will help you plan the next step. You can start with the project planner.
Where your area changes the answer
In some places a new vertical wall is limited or not allowed, which can make repair the only practical choice.
- Miramar Beach & Sandestin bayside: a new vertical bay wall must fill a gap of 150 feet or less between two existing seawalls.
- 30A coastal dune lakes: no bulkheads, seawalls, revetments or riprap within 300 feet of a dune lake.
- Bluewater Bay & Rocky Bayou: east of the State Road 20 bridge, the aquatic preserve tightens limits on seawalls and docks.
- Joe's Bayou: no seawall may be placed in coastal marsh.
- Niceville & Boggy Bayou: you can permit a wall before a house.
Show sourcesHide sources
- Destin LDC Sec. 11.01.10 Bay shoreline protection zoneSource reviewed 2026-10-27
- Walton County LDC Chapter IV Resource Protection Standards, Sec. 4.03.03 (Municode, Supp. 70 Update 1)Source reviewed 2026-10-27
- NOAA National Geodetic Survey datum FAQSource reviewed 2026-10-23
- Engineering DirectorySource reviewed 2026-10-23
- CO-OPS Metadata API: datums for stations 8729501, 8729479, 8729425, 8729376, 8729538 (one URL shown; same endpoint pattern per station)Source reviewed 2026-10-27
- Flood Insurance Study, Okaloosa County, FIS 12091CV000B, Table 16Source reviewed 2026-10-27
- Flood Insurance Study, Walton County, Florida and Incorporated Areas, FIS 12131CV000B, Table 16Source reviewed 2026-10-27
- Hurricane Sally - September 2020Source reviewed 2026-10-27
- Building DivisionSource reviewed 2026-10-27
- 62-330.431 General Permit for Installation of RiprapSource reviewed 2026-10-27
- 2026 Florida Statutes section 403.813Source reviewed 2026-10-27
- Florida ERP Applicant Handbook Volume I, June 28 2024Source reviewed 2026-10-27
- 2026 Florida Statutes s. 373.414Source reviewed 2026-10-27
- Rule 18-20.004, F.A.C., Management Policies, Standards and CriteriaSource reviewed 2026-10-27
- 161.053 Coastal construction and excavation; regulation on county basis (The 2026 Florida Statutes)Source reviewed 2026-10-27
- Okaloosa County BCC Agenda Request: Review of Due Diligence Requirements for the Waterfront Property in Shalimar (July 14, 2026), with attached Seawall Inspection Report dated April 15, 2026Source reviewed 2026-10-27
- Post Tropical Cyclone Report - Isaias - NWS Mobile/Pensacola (updated 10/23/2026)Source reviewed 2026-11-05
- Building Permit Exemption for fence and dock repairs (News Flash)Source reviewed 2026-11-05
- Destin LDC Sec. 11.05.10 Reconstruction of existing facilitiesSource reviewed 2026-10-27