Driving east on Route 2 today (carpooling!) we crossed through the Route 2 construction zone over 128. The 60-or-so-year-old bridge is decaying and is being fully rebuilt.
Average daily traffic: 104,000, give or take.A bit closer to the city, there's another bridge which whisks commuters in and out of Boston every day. It's twice as old as the Route 2 bridge, and carries more people (but fewer vehicles). I speak, of course, of the Longfellow.
Length of the bridge: 340 feet.
Cost: $50 million.
Cost per linear foot: $147,000
Cost per linear foot per person*: $1.18
(* assumes 1.2 passengers per car)
Average daily traffic: 130,000, give or take (20,000 cars, 100,000 Red Line, 10,000 bikes & peds)
Length of the bridge: 1850 feet.
Cost: $255 million.
Cost per linear foot: $138,000
Cost per linear foot per person*: $1.04
|From Andy Singer.|
I'm not saying that we shouldn't rebuild the Route 2 bridge. We can't let our infrastructure crumble. But when it comes to rebuilding infrastructure, it's important to know that every time you see cones on the side of the road, there's a real cost involved. I would not be surprised if there are a lot of people who look at the Longfellow as a bloated project—a quarter billion dollars!—and don't give a second thought driving by the orange barrels on Route 2.
Yet if we measure return on investment by how much new bridge we get per person traveling on it, it's the little bridge replacement project out in Lexington that costs us more. And while the Longfellow is one of only a few transit-centric replacement projects (and even it contains a majority asphalt), there are scores of bridge replacement projects across the Commonwealth that chew up a lot more money. No one ever blinks an eye at a proposal to rebuild a decaying highway bridge. That's necessary maintenance. But more transit projects are a much harder sell, even if they're more efficient.