comstock.030805

First Truss Ready on Comstock Bridge WGN 45-06-04. Downstream truss ready. Note the new end-post. Epoxy was used to mend the end of the lower secondary chord plank at the end post to preserve historic fabric. Photo by Joe Nelson, August 5, 2003 August 5, 2003 - While work is progressing on the abutments, restoration is complete on the downstream truss. New end posts of Douglass Fir have been installed. Rotted lower chord and lattice planks were replaced with Douglass Fir. Epoxy was used to mend one lower secondary chord plank at the end post to preserve historic fabric. Most of the original timber has been kept. The Truss retains a camber of four inches.        Disassembly of the upstream truss has begun while the work on the abutments cures. The rebar is installed and ready for the casting of new backwalls.        The configuration of the abutment caps cast in the 1950s is blamed for the deterioration of the trusses.

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