I think that new construction in Plainville is just about dead. Nearly every empty lot has been used. Southington still has growing room. This population density should help secure business.
One of my friends used to say that Connecticut is a backwater. Transportation wise, he is correct. New York is impossible to get through. A friend who is a trucker said that it is over $100 to go through there with an 18 wheeler. All of the rail traffic backtracks down from the B&A, B&M, or Rutland. A cost study would be needed to see if it is cheaper to pay tolls, or run a rail car on the above mentioned circuitous route. This is noting Poland Spring water comes from the north, so that part of the argument is moot. Trucks can, however still run up to I84, and run on a route which is parallel to the former Maybrook line.
What do you think about using Waterbury for these loads? The lower yard, where Porta Nova was would work, It's also closer to New York.