Western Railroad Discussion > Question: Dunsmuir area bridge repair

This spring a derailed car of a UP freight damaged one end of a through-truss bridge over the Sacramento River near Castella/Dunsmuir, closing the line for several days. Does anyone have information on (especially images of) the repair process? Were damaged elements cut out and replaced? Was temporary bracing used? Does anyone know in general how such repairs are carried out? I ask in preparation for teaching an introductory course in the civil engineering aspects of railroads.

That was the SIMMS bridge that was damaged south of Dunsmuir CA in spring 2017..
YOu can use 'Simms Bridge" as a search query for more info.
----Daniel

Here are some trainorders on-line forum posts on this incident I have been able to dig up so far:
EDIT 1:23PM -First post on Passenger Trains forum announcing the derailment
https://www.trainorders.com/discussion/read.php?4,4280358

EDIT 1:16pm PT First post on Western board on to here anouncing this from april 2017:
https://www.trainorders.com/discussion/read.php?1,4279968

Edit 1:18Pm pt a Photobob photo post on sSimms Derailment:
https://www.trainorders.com/discussion/read.php?1,4296603



Edited 3 time(s). Last edit at 09/25/17 13:18 by daniel3197.

Here is the best discussion on the damage and repair:

https://www.trainorders.com/discussion/read.php?1,4280875,page=1