Which us bridge were bicycles first allowed to cross for the first time in 1970?

The US bridge that allowed the passage of bicycles for the first time in 1970 was GOLDEN GATE BRIDGE. On February 28, 1970, Golden gate bridge west sidewalk was opened to bicycles used during non-work hours. During the working hours, the bridge work forces uses that west sidewalk to carry out maintenance and repair works on the bridge.

Arctic temperate greenhouse