$109,500,000:
Take ten people with their own video cameras and spread them out across the connector tunnel. Pay each $100 a shift to make sure their cameras are recording. Add three shifts so that there's 24 hour coverage. That comes out to about a million a year.
Let's say you want to budget this for fifty years. No, make it a hundred years. Throw in meals and the price of replacement tapes and still, this fiscally irresponsible plan would only cost about half of the $200 million price tag we paid for the Big Dig video system... that didn't work!
