An SP&S crane working on some tie replacements on the Cow Creek trestle, undated.

An SP&S crane working on some tie replacements on the Cow Creek trestle, undated.

A view of SP&S bridge crew working on the Cow Creek trestle, undated.

Burlington Northern diesel locomotive Number 7940, EMD SD40-2, former Colorado & Southern 7940, leads a train across the Cow Creek trestle, February 1988. Photo by Robert Johnston.