girder

The final box girders were swung into place at the end of 1963, covered in the Union Flag and Lion Rampant to mark the occasion.

Installation of the steel girders were completed back in April, and crews have since been assembling wood forms and placing reinforcing rods in preparation for concrete pouring.

Last week, the final girder was installed on the crossing, completing the foundation and marking a construction milestone.

Crews will be installing steel girders — long boxes of reinforced concrete — over the freeway in order to build the vegetated bridge, according to Caltrans.

Crews will install girders over the freeway to support the crossing, a vegetated bridge that will reconnect wildlife habitat, officials said.