There is an
update on the condition of the Pfeiffer Canyon bridge. From the article:
Caltrans engineers evaluated the canyon Wednesday to try and determine the position and the location for a new bridge. Galarza wouldn’t say how long it could take before a new bridge is in place, explaining it would depend on the design.
They need to gather survey data, right-of-way mapping and geotechnical information, Galarza said.
Summary: replacing the bridge isn't going to be quick or easy.