An ancient 130-acre California salt marsh was filled, drained and turned into an airfield; a century later, crews removed 230,000 cubic yards of soil to let the tides return

Source Summary

US News: Crissy Field, once a thriving tidal marsh, transformed into a military airfield, has been restored, allowing tides to return after a century. Discover how community efforts and engineering brought back vital ecosystems and recreation space.