Dear San Jose:
When critics lampoon your plans for Diridon Station as a giant money pit, it was meant as a joke — not a design requirement.
The alternative routes include several ideas submitted by the San Jose transportation department, including an aerial or underground line that would thread the Highway 87 and Interstate 280 interchange and end at a new train station between HP Pavilion and the current Diridon station. The new station could be built above ground or underground, but an underground station would probably be constructed under the proposed BART station — where buses now stop in the Diridon parking lot. An underground high-speed rail station there would be about 10 stories deep.