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Seawall Leak Warning Signs — Depressions in the French Drain

SW Florida, FL

Not a repair job — a warning. These are the depressions and sinkholes we get called out to look at, and 9 times out of 10 they mean the same thing: your seawall has a crack or blown joint under the waterline, and every tide is pulling soil out of your yard through it. You can't see the actual leak because it's underwater, but you can see the damage on land — a soft spot in the grass, a dip in the gravel French drain, or a hole opening up along the seawall cap. If you're seeing any of this on your property, it's not going to fix itself. The wall is failing slowly right now and will fail suddenly later. Call us for an on-site look while it's still a cheap fix.

Seawall Leak Warning Signs — Depressions in the French Drain — photo 1
Warning sign #1: a depression forming in the gravel French drain right behind the seawall cap. That dip means dirt is washing out through a leak in the wall below the waterline.
Seawall Leak Warning Signs — Depressions in the French Drain — photo 2
As the leak grows, the depression gets deeper and wider. Left alone, this becomes a sinkhole at your seawall and eventually undermines the wall itself.
Seawall Leak Warning Signs — Depressions in the French Drain — photo 3
Another view of the same failure pattern — soil migrating through a crack in the seawall panel, pulling the yard down toward the water one tide at a time.
Seawall Leak Warning Signs — Depressions in the French Drain — photo 4
Depression running along the top of the seawall cap. If you can see it from your yard, the leak underwater is already active.
Seawall Leak Warning Signs — Depressions in the French Drain — photo 5
Catching it early is everything. A small dip in the drain now is a full seawall failure later — the actual crack is underwater, but this is how you spot it from land.

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