AMTK 190 passes underneath one of the only remaining Rio Grande signal bridges still in existence. This is at Utah Junction at the north end of North Yard. The Zephyr is on the main track, the North Yard siding the next track to the right. The next track to the right is actually the North Yard lead, and it is not in CTC limits. This is why there are only two sets of signals on the bridge.
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