Quote:
Originally Posted by Gordo
It would need to be 40-50,000+ units before we could even begin to talk about some type of bridge or tunnel, and even then that probably wouldn't be enough to make spending money on a tunnel smarter than spending it on Geary or a second Transbay tube south of the current one to go under Alameda and into Oakland from that direction.
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You might be able to swing the cost of an aerial tramway. Building piers for the pylons in the Bay would be expensive, but far less than a bridge or tunnel. If designed properly, it can haul a decent load of passengers to SF or Oakland. I'm not sure about maintenance expense, but this would certainly require less manpower than a fleet of ferries.