06/10/2026
Biostabilization vs Seawalls: Wisconsin Freeze-Thaw Performance
Envirolok, Flexamat, ESP, traditional seawalls. Every manufacturer brochure claims their system outperforms the others.
What the brochures do not always address is how these systems behave under the specific load Wisconsin lakes apply: 30 to 60 freeze-thaw cycles a year, lateral ice push from sheet ice, saturated bank soils in spring with rapidly fluctuating lake levels. That is the only performance data that matters.
The honest comparison, system by system ⬇
Envirolok, Flexamat, ESP, and traditional seawalls — how each performs through Wisconsin freeze-thaw cycles, ice push, and high-water years on inland lakes.