Expandable barriers: These are designed to more precisely fit openings like home doorways, which potentially reduces the seepage over sandbags. Antinelli and Chris Rodriguez, a flood mitigation ...

"People are seeing water creeping up to their doors during king tides or heavy storms," he says. "It's getting underneath homes and rising through the flood boards." And once even a little gets inside ...

For the past three years, engineering consultant Michael Antinelli has worked with the city of Miami Beach and its residents to draw up individualized flood-prevention plans. So far, he’s visited 140 ...