Crissy Field: From Concrete Jungle to Thriving Marsh

Crissy Field, a scenic San Francisco waterfront, has undergone a remarkable transformation from a concrete military airfield to a flourishing tidal marsh. This 130-acre site, historically a vibrant estuary, was extensively developed, eventually becoming a neglected concrete expanse after serving as an airfield for historic flights.

Beginning in the late 20th century, a massive restoration effort commenced. This involved removing nearly 90,000 tons of contaminated material and excavating over 230,000 cubic yards of fill. In November 1999, tidal waters once again flowed into the area, reconnecting it to San Francisco Bay.

The 100-acre restoration project successfully recreated an 18-acre tidal marsh and restored coastal dune habitat. This re-established habitats for 105 species of plants and now supports at least 25 fish taxa and over 100 invertebrate taxa, becoming a crucial ecological area.

Nearly 100 bird species now utilize the restored marsh as a vital stopover along the Pacific Flyway. The project, supported by over 3,000 volunteers and significant community funding, also involved cleaning East Beach and adding walking paths, creating a public space that coexists with nature.

The Crissy Field Center, opened in 2001, now uses the shoreline for environmental education programs. Today, Crissy Field exemplifies how urban landscapes can be rehabilitated, offering recreation and natural beauty within the city.