Monthly Update


From The Archives

This month, we spotlight an original 1950s press photograph of Frank Lloyd Wright’s visionary “Butterfly Wing Bridge,” which was designed as a proposed southern crossing of the San Francisco Bay. The bridge was intended to span from approximately Army Street (now Cesar Chavez Street) and Third Street in San Francisco to Bay Farm Island, just north of the Oakland Airport.

Wright’s concept featured a sweeping viaduct of reinforced concrete, hugging the water’s surface until it approached the ship channel. There, the bridge would rise into a dramatic, 2,000-foot-wide arch. As the roadways ascended, they diverged outward in a graceful curve. At the apex of the arch, a unique circular platform of reinforced concrete extended from each roadway, meeting at their tangent to form a resting point. This area was designed to allow vehicles to pull over and park, offering access to a lush garden space where visitors could step out and take in expansive views of the Bay.

A large-scale model of the bridge was constructed in 1951 in Aaron Green’s office at 319 Grant Avenue, where it remained a striking centerpiece for many years. The model was last exhibited at the Oakland Museum in 1989, as part of a showcase dedicated to Wright’s “Butterfly Wing Bridge.”

If you have archival materials related to Frank Lloyd Wright, the Taliesin Fellowship, or any other organic architectural or design items that you're interested in donating for our growing collections, please let us know by contacting us at info@oadarchives.org.

Image courtesy OA+D Archives/Eric M. O'Malley Collection

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