As the nation plans new defenses against the more powerful storms and higher tides expected from climate change, one project stands out: an ambitious proposal to build a nearly 60-mile “spine… ...

As the nation plans new defenses against the more powerful storms and higher tides expected from climate change, one project stands out: an ambitious proposal to build a nearly 60-mile “spine… ...

The gate will be lifted and lowered by motors and winches bolted to 54-ft-tall tubular steel towers bolted to the concrete slab atop the barrier wall, for a total height of +80 ft. “Cables ...

A motorcyclist rides past machinery used to convert a movable barrier already in place south of the Golden Gate Bridge toll plaza in San Francisco, Calif. on Friday, May 23, 2014.

As the nation plans new defenses against the more powerful storms and higher tides expected from climate change, one project stands out: an ambitious proposal to build a nearly 60-mile “spine… ...

As the nation plans new defenses against the more powerful storms and higher tides expected from climate change, one project stands out: an ambitious proposal to build a nearly 60-mile “spine… ...