SEATTLE SEAWALL

Bulkheads and other forms of ‘armoring’ line 92 percent of Seattle’s marine shoreline. Removing these can help restore habitat for endangered species—but can also erode land. Not surprisingly, some homeowners are resisting

Science shows that shoreline armoring—which includes structures such as bulkheads, riprap armoring (big chunks of jumbled rocks) and seawalls—can profoundly disrupt the connection between land and Puget Sound’s waters, degrading habitat for bugs, birds and fish, including endangered chinook salmon and orcas that rely on salmon for food.