Gulf Hurricane Season: Before, During and After for Marine Assets
By Gus Marchetti, Salvage master. Reviewed by Dana Whitcombe, technical reviewer.
Dock & Pier Repair | Marine Salvage & Recovery I'll never forget the water leaving Gulfport harbor in 2005. It just sucked out, not dramatic, like a bathtub draining, forty-five minutes before Katrina's surge came back. If you own a marina or run a dock, that weird quiet hour is the worst one you'll ever experience, because there's no time left to do anything right, and the phone's already ringing. I'm a salvage master, not a marina manager, but I started as a deckhand on charter boats, spent 22 years pulling other people's mistakes off the bottom, and most of those mistakes live right under a dock. The Gulf knows how to make your marina look like a pile of toothpicks, and the prep, the in-storm choices, and the aftermath are all different from what most owners think.
Before: Prepping the Dock Like You Mean It
One digression: I've seen folks tie an extra line from the bow to piling, then tighten it with a winch until it's bar tight. That's the worst thing you can do. When the surge rises, the boat's on the end of that line with zero give, and the cleat or the piling loses. You want a hurricane line set: all lines are of similar length and elasticity, no line is too tight, and the boat stays centered in the slip. It's a balancing act. Most marinas fail because they over-tie, not under-tie. Remember: your goal is to keep the boat in the slip, not to win a tug-of-war.
During: What Actually Happens at the Dock
There is no 'during' that involves you standing on a dock. By the time the eye's a hundred miles out, you're off. I've been in a marina when the storm surge came in at midnight, and the sound was not the wind—it was the roar of water moving through the slips. It's a sound I'd rather not hear. The surge doesn't come as a wave; it's a continuous rise, so the dock creaks and moans. The boats jump around, lines squeak. If you're on a boat during that, you're volunteering to die. We lose a handful of liveaboard every season because they 'wanted to feel something'. No. Stay in a concrete building inland. Your marina will be okay, or it won't, and there's nothing you can do about it but watch from inside. That's the part owners don't like. But your job before the hurricane is to make sure the dock can take the hit. During, you just wait.
After: Salvage and the Recovery Mess
The real work is in the slow days after. You'll have to re-pile, re-deck, and re-cable. And every marina owner calls me with the same question: 'How do I know my dock is safe to put a boat on?' I always say: don't put a multi-million dollar yacht back on a compromised dock because it looks okay. Call an engineer. If you don't have one, ask a local marine contractor who's been through a storm. That's not a sales pitch; it's a liability thing. A dock that survived Katrina might have cracked a weld in some way you can't see. You wouldn't jump in a car after it was rear-ended at 60 mph without checking the frame, right?
The Ones That Survive: Lessons Learned
Let's talk about your boat insurance. Most policies for a marina have a deductibles that go up for named storms, often 2% to 5% of the insured value. That's not a cheap line. And a lot of policies exclude 'docks and piers' unless you've already cleaned up and started repair within a certain window. Read your policy now, not after the storm. I'd also encourage every marina to have a documented hurricane plan that you've actually drilled. Walk the line, tag every vessel with its slip number and a list of emergency contacts, and keep that in a waterproof bag. Make sure your dockmaster knows how to use the radio for a mayday. It's not about being brave; it's about being methodical.
Frequently Asked Questions
How many hurricane lines should a boat have to secure it to a marina dock? At least six for a 30-foot boat: two bow lines, two stern lines, and two spring lines. In a storm, you'd add two or four more, all nylon and all independently tied. More lines spread the load, but keep them roughly equal in tension—each line shouldn't be taut enough to vibrate. Should I double up my lines or use one big line? Double up, with separate cleats, not just two wraps on the same cleat. Use two lines per attachment point. That way, if one parts, the other holds. But don't make one line extra-tight or it takes all the load. Can I stay on my boat during a hurricane at a marina? Flatly no. It's not a macho thing; it's a death/maybe death thing. Storm surge puts your boat in the marina buildings, and you'll be thrown around. Get to a NHC-designated safe shelter, and leave the boat to its fate. You can't sail a boat in a hurricane. What's the best way to protect a floating dock from surge? Floating docks inherently ride the surge, so you're mainly worried about relative motion between the dock and the piling. Use enough piling riser lines that the dock can't jump its pile caps, and make sure the cradle brackets are tight. Also, give the lines slack to let the dock move vertically—if you lock it to the pilings, the surge will lift the whole dock.