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impact on adjacent properties would be greatly diminished because the viaduct would consist of an <br />elegant two -track structure with "gullwing" platforms contained entirely within the existing right of way <br />(all passing would take place in the tunnels). <br />00 <br />Cost of tunneling <br />Conventional wisdom characterizes tunnels as "too expensive" but the real cost of undergrounding (up <br />to $113/mile in some cases) comes from underground stations, not the tunnels per se. As an example, <br />while the cost of San Francisco's 1.6 mile Central Subway may exceed $1.613, the twin -bore tunnels were <br />constructed for $238M. <br />Redwood Junction <br />As stated above, the High Speed Rail Authority have long considered a mid -Peninsula stop and went as <br />far as analyzing models that leveraged the existing passing tracks south of Highway 84 even though <br />there were no plans to build a station in Redwood Junction at the time. <br />Such a station would offer the following advantages: <br />- A High Speed Rail stop with a direct rail connection to Facebook and the East Bay <br />- Cross -platform transfers between HSR and local and express Caltrain service <br />- Up to 8 stops/hour in Redwood City (4 downtown and 4 at Redwood Junction) <br />- An additional mid -Peninsula passing opportunity for High Speed and express Caltrain service <br />catching up with slower trains <br />