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Reply to "Bridge too low for CSX trains in Delaware"

All RR measurements are from top of rail. That works for under ground utilities or any above ground work. We always measured from top of rail, as that is the starting point and what everything should be based off of. Lowering the track does not always work. We had to undercut a bridge 21" to allow for double stacks, and ended up hitting the underground bridge supports. CSX usually pays for bridges to be raised to accept future improvements.

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