Since watching the Virtual Railfan camera footage of the UP derailment in September I have been trying to identifty an oddity on the high bridge.
Can anyone give me information as to what the eight screwjacklike appliances are on the top of bridge structure?
Those were discussed in the chat at the time of the derailment.
They're to adjust the level of the bridge, but I don't recall why. Possibly for high water.
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
They would allow the bridge to raise to keep it from becoming a dam and colledt debris.
They did some mods to strenghten the bridge and 'locked' the jacks
https://bridgehunter.com/ks/wyandotte/highline/
http://industrialscenery.blogspot.com/2018/07/two-level-double-track-bridge-over.html
Thank you for the information. Looking at it now it makes sense.
What would Homer Simpson say: "Doh"
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