Quote:
Originally Posted by WarrenC12
The train bridge and tracks would require untold re-work to get to the elevation of the Patullo or a Patullo replacement, in order to allow Fraser River traffic to pass. The train bridge at current elevation swings open to let ships through.
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Certainly a valid point. It isn't insurmountable, but I agree that it isn't trivial either. Since only the centre span swings, only the centre of the bridge needs to be high enough for water traffic to pass, so some of the elevation change could be done on the bridge itself, since trains don't like steep grades.
Having it integrated with the Patullo bridge would make it easier, especially on the west end, where the tracks have to do a sharp Y.