I have an op-ed in the Boston Globe today on infrastructure, addressing the issue of quality rather than quantity of investment. Rachel Lipson, a graduate student at Harvard, and I describe the fiasco that has emerged from what should have been a routine maintenance project on the Anderson Memorial Bridge over the Charles River next to my office in Cambridge. Though the bridge took only 11 months to build in 1912, it will take close to five years to repair today at a huge cost in dollars and mass delays.