What are the possible options for rail service on the Bay Bridge?
This includes defining technology options and alignment possibilities for rail service, both over the bridge span, and within the west and east bay areas. • What are the impacts of each type of rail service on the structure of the Bay Bridge? This requires an understanding of where the rails might be located, whether they would change the lane configuration on the bridge, and how the east and West span systems will be joined by rail. • How much will the structural changes and the rail infrastructure cost to implement? While this feasibility level study is done without any engineering or design work, it does provide an order of magnitude estimate of costs, both for structural improvements and for the rail infrastructure itself. It should be noted that not all costs need to be incurred at the same time – for example, it is possible to add the rails to the bridge before adding the rail infrastructure for a long term implementation. For the purposes of this study, the seismically retrofitt
