The short answer
Safety First
Before you touch anything, turn off power to the dock's outlets and lights at the breaker. Floodwater can hide electrical hazards, and wet wiring is dangerous. Wear rubber boots and gloves while you work. If you feel unwell or smell fuel or sewage, step back and see a doctor if symptoms persist.
Check the dock's structure for soft spots, loose boards, or shifting pilings before walking on it. A flood can weaken supports even if they look fine. If the dock feels unstable, stay off and let the pros inspect it. Also, note that floodwater may contain bacteria, so wash your hands thoroughly after handling anything.
Remove Standing Water
Use a submersible pump for deep water or a wet/dry vacuum for shallow puddles. Work from the lowest point outward so water drains away from the dock. If the dock has a solid deck, you may need to lift a few boards to let trapped water escape from below.
After the bulk of water is gone, mop up the remaining film with towels or a squeegee. Pay attention to corners, around cleats, and under benches where water pools. The faster you remove standing water, the less chance it soaks into wood and swells joints.
- Use a pump for water deeper than 2 inches
- Wet/dry vacuum for thin layers and puddles
- Lift loose boards to drain underneath
- Squeegee or towel off the final film
- Wear boots and gloves the whole time
- Work from the low side toward the high side
Clean off Mud and Debris
Floodwater leaves silt, leaves, and grime that hold moisture against the wood. Rinse the dock with a garden hose, starting at the top and working down. Use a stiff brush to scrub off caked-on mud, especially in grooves and between boards.
For oily or sewage-contaminated water, a mild detergent and water solution helps break down residue. Rinse thoroughly so no soap film remains. If the flood came from a river or lake, also check for small debris like twigs or gravel that can trap moisture under boards.
- Rinse top to bottom with a hose
- Scrub grooves and between boards with a stiff brush
- Use mild detergent for oily residue
- Rinse off all soap thoroughly
- Pick out twigs, gravel, and leaves
- Let the surface air dry before sealing
Dry the Wood Thoroughly
Open any hatches, access panels, or storage compartments so air can reach both sides of the wood. Set up fans to blow across the surface and under the deck. A dehumidifier helps pull moisture from the air, which is especially useful in humid weather.
Let the dock dry for several days, not just a few hours. Wood dries from the outside in, so thick planks take time. Check for dampness by pressing a fingertip into the wood; if it feels cool or dark, it is still wet. Do not seal or paint until the wood is fully dry, or you trap moisture inside.
- Open all hatches and access panels
- Position fans to blow across and under the deck
- Run a dehumidifier in enclosed areas
- Wait several days, not hours, for drying
- Test with a fingertip for cool or dark spots
- Avoid sealing until wood is bone dry
Inspect and Prevent Mold
After drying, inspect for mold, which appears as black, green, or white spots. Mold can grow within 24 to 48 hours in warm, damp conditions. If you see it, clean small areas with a detergent solution and a brush. For large patches or if you have breathing problems, call a mold professional.
Check hardware like bolts, hinges, and brackets for rust or corrosion. Replace any that are pitted or weak. Also look for swelling in wood joints that may need sanding or replacement. If the dock has electrical fixtures, have an electrician check them before you use the power again.
For serious structural damage or deep water absorption, local water damage pros can help with drying and repairs. They have industrial dehumidifiers and moisture meters to confirm the wood is dry. If you have flood damage beyond the dock, related services may be useful.
Water damage does not wait
Call (469) 698-4610 any time, day or night, and describe what happened.
Call Now (469) 698-4610Frequently asked questions
How long does it take for a dock to dry after a flood?
It depends on the wood thickness, weather, and how much water soaked in. Usually, a dock takes several days to a week to dry fully. Fans and dehumidifiers speed this up. Test the wood with your fingertip; if it feels cool or dark, it is still wet.
Can I use a space heater to dry the dock?
Yes, but carefully. A space heater can help in cold weather, but keep it away from wood and never leave it unattended. Also, heat alone does not remove moisture; you need airflow. Use fans to circulate warm air, and avoid overheating the wood, which can cause cracking.
What if the floodwater was sewage or chemical runoff?
Treat that as a biohazard. Wear gloves and boots, and do not let the water touch your skin. Wash the dock thoroughly with detergent and rinse well. If the contamination is heavy or you feel unwell, see a doctor. For deep cleaning, consider hiring the pros.