In 2014, California buried an abandoned airfield under 5.8 million cubic yards of harbor mud, then opened 998 acres to the tides

Once serving as a military airfield, a site in Marin County, California, has evolved into a vibrant wetland. Engineers meticulously utilized millions of tons of dredged mud to restore the land, while a strategic levee breach allowed San Francisco Bay to reclaim the area after a century. This groundbreaking restoration not only fosters endangered wildlife but also counteracts sea-level rise, establishing a valuable framework for upcoming coastal defense strategies.