A $26 billion plan to save the Houston area from rising seas
https://arstechnica....om-rising-seas/
'the centerpiece of the latest Corps proposal is a massive set of gates across the Bolivar Roads. As a storm approaches, the two main navigation gates will float and swing out of dry docks to close the channel. Each will be 82 feet high—with 22 feet above water when closed—and 650 feet wide—almost twice the length of a football field. These giants will be combined with two smaller swing gates, plus a set of vertical lift gates that stay open in normal weather to let the tides flow.'