Which seawall repair fits what you see?
Each row links to the page on causes, repair options and permits for that problem.
| What you see | What it often means | Read this |
|---|---|---|
Hairline or wide cracks in the cap | Cap movement, rust, or loss of support | |
Wet spots or a sinkhole behind the wall | Soil washing out through gaps | |
Wall leaning toward the water | Failed anchors or pushed-out soil | |
Hollow sound or voids under a slab | Empty space behind or under concrete | |
Rotten boards, whole wall worn out | End of service life | |
Eroding bank, no wall at all | Waves or boat wakes cutting the shore | |
Loose pilings, damaged dock or lift | Storm or rot damage to the pier | |
Not sure, or damage after a storm | Needs a professional look first |
Who reviews seawall work in Gulf Shores?
The City of Gulf Shores permits work inside the city and its police jurisdiction. Baldwin County permits most other shore property, including Fort Morgan and Bon Secour.
| Office | What it handles | Phone |
|---|---|---|
Gulf Shores Building Department | City bulkhead and pier permits | (251) 968-1150 |
Baldwin County Building Department | County flood permit for marine work | (251) 972-6837 |
Corps of Engineers, Mobile District | Federal permit for work in waters | (251) 690-2658 |
State Lands Division, Coastal Section | Notice to impact state-owned bottoms | (251) 621-1216 |
ADEM Coastal Program | Coastal consistency and applications | (251) 304-1176 |
Sources: Gulf Shores Building Department Baldwin County Building Department Corps Mobile District State Lands Coastal Section ADEM Coastal Program
Unsure whether your lot is inside the city? The Baldwin County parcel viewer has city-limit and permit-jurisdiction layers you can switch on. Baldwin County parcel viewer
What is the permit order for seawall work?
Most bulkhead work follows one order. Skipping a step is how projects get stop-work orders.
- Find your jurisdiction. City or county decides who issues the local permit.
- Call the Corps and State Lands. The city holds its permit for a new bulkhead until both approve. Gulf Shores building handbook
- Match the federal permit. Repairs often use Nationwide Permit 3. Bank stabilization uses Nationwide Permit 13. Nationwide Permit 3 Nationwide Permit 13
- Copy ADEM and State Lands. The Alabama general permits require it. 2026 Alabama general permits
- Apply locally. Gulf Shores uses its contractor portal. Baldwin County uses CitizenServe. Gulf Shores portal Baldwin County portal
Read the bulkhead permit guide for fees and penalties, and the Baldwin County guide for the county side.
What do seawall repair and replacement cost?
No local price list exists, so use public bids and national guides as a check on any quote. Prices swing with access, wall height and soil.
| Item | Range | Kind of evidence |
|---|---|---|
Repair of an existing wall | $100 to $250 per linear foot | National repair guide |
New vinyl wall, Baldwin County bids (2022) | About $256 to $611 per foot | Public bid tabulation |
New timber wall, Baldwin County bids (2018) | $419 to $725 per foot | Public bid tabulation |
New wall, all materials | $100 to $800 per foot | National cost guides |
Riprap rock wall | $70 to $400 per foot | National cost guides |
Sources: Baldwin County 2022 bids Baldwin County 2018 bids
Salt water costs more, and a survey, engineering and permits add to the total. The bulkhead cost guide has the full tables, including docks and wall removal.
Why do Gulf Shores walls wear out so fast?
Gulf Shores walls sit in salt and brackish water. Salt eats steel and rusts the rebar inside concrete. Wood rots and gets bored by marine worms.
- The Gulf swings only about 1.4 feet between tides, but storms push it far higher. Gulf State Park Pier gauge
- Little Lagoon is brackish. It mixes Lake Shelby overflow with Gulf water that enters through the pass, and over half its shore is already hardened. Fish and Wildlife Service notice
- The Intracoastal Waterway brings boat wakes and barge wash against walls on the south bank. See Waterway Village.
- Sea level is rising about 1.7 inches a decade at Dauphin Island, the nearest long gauge. NOAA sea level trend
A hard wall can throw wave energy back at unprotected neighbors. Sea Grant living shorelines manual Compare bulkhead materials before you choose.
What did Ivan and Sally do to local walls?
Ivan in 2004 and Sally in 2020 set the local benchmark for insurers and engineers.
- Ivan, 2004. Surge of 10 to 15 feet scoured sand from under beachfront buildings. National Hurricane Center Ivan report
- Sally, 2020. It landed at Gulf Shores as a category 2, with the worst surge damage in the back bays and sounds. Sally landfall Sally back bays
Damage often shows weeks later as a sinkhole or a lean. Photograph first, then use the storm-change checklist and the storm guide.
Who should do the work
Use a licensed marine contractor and, for larger jobs, an engineer. Alabama sets license lines by job size, and Gulf Shores sets its own.
- Residential builders need a Home Builders Licensure Board license above $10,000. Home Builders Licensure Board
- General contractors need a state license at $100,000 or more. General Contractors Board
- At $50,000 or more, the city permits only the owner or a licensed general contractor. Gulf Shores Code Sec. 7-5
- Gulf Shores needs an engineer or architect seal on plans for work above $50,000. Gulf Shores Code Sec. 7-6
Get the license number on the contract and look it up. Steps are in the contractor check guide.
Find the area guide for your shore
Rules change by water body. Pick the guide that matches your lot.
- Gulf front (armoring rules): West Beach and East Beach.
- Little Lagoon: north shore, south shore and the pass.
- Canals and the Intracoastal: old-town canals and Waterway Village.
- River and bay: Plash Island, Bon Secour and Fort Morgan bay side.
- Fort Morgan Gulf side: beach homes and dunes.
Outside the city, start with the Baldwin County guide. Browse all area guides.
Show sourcesHide sources
Price and technical sources
- Angi. How Much Does It Cost to Repair a Seawall [2026 Data]. United States (national). Source reviewed 2026-10-31
- Angi. How Much Does It Cost to Build a Seawall? [2026 Data]. United States (national consumer guide). Source reviewed 2026-11-01
- HomeAdvisor (Angi). How Much Does It Cost to Build a Sea Wall?. United States (national). Source reviewed 2026-11-01
- Building Permits | Gulf Shores, ALSource reviewed 2026-11-01
- Contact Us | Baldwin County Building DepartmentSource reviewed 2026-10-31
- South Atlantic Division > Missions > Regulatory > AlabamaSource reviewed 2026-10-31
- Contact Us (Alabama Department of Conservation and Natural Resources)Source reviewed 2026-10-31
- Alabama Coastal Area Management Program (ADEM Coastal Program page)Source reviewed 2026-10-31
- Permitting FAQs | Baldwin County Building DepartmentSource reviewed 2026-10-31
- City of Gulf Shores Building Department, Building Permitting Procedures Handbook (2025)Source reviewed 2026-11-01
- 2026 Nationwide Permit 3, Maintenance, 91 FR 768Source reviewed 2026-10-31
- 2026 Alabama General Permit Program, ADEM and ADCNR notesSource reviewed 2026-10-31
- WG23-03 - Certified Bid Tabulation, Lillian Boat Launch (Sawgrass bid tabulation, October 2022)Source reviewed 2026-10-31
- Seminole Landing Boat Launch - Bid Tabulation (BCP 0206816)Source reviewed 2026-10-31
- NOAA CO-OPS Metadata API: Datums, station 8731269Source reviewed 2026-11-01
- F19AS00267 NOFO Little Lagoon Living ShorelineSource reviewed 2026-11-01
- CO-OPS Sea Level Trends (derived product API)Source reviewed 2026-10-31
- Coastal Alabama Living Shorelines Policies, Rules, and Model Ordinance Manual (Boyd and Pace; supported by the Mobile Bay National Estuary Program)Source reviewed 2026-10-31
- National Hurricane Center Tropical Cyclone Report: Hurricane Ivan, 2-24 September 2004Source reviewed 2026-11-01
- National Hurricane Center Tropical Cyclone Report: Hurricane Sally, 11-17 September 2020Source reviewed 2026-11-01
- Code of Alabama 1975 Sec. 34-14A-2, Definitions (Home Builders Licensure)Source reviewed 2026-10-31
- Code of Alabama 1975 Sec. 34-8-1, Definitions (General Contractors)Source reviewed 2026-10-31
- Gulf Shores Code Ch. 7, Art. I In General (city Building Permit Fees page, Municode text)Source reviewed 2026-11-01