You can now read 10 articles in a month for free on BostonGlobe.com. Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe

Metro

Replacing 1950s overpasses is costly, complex

SOMERVILLE — How ugly is the McCarthy Overpass, the elevated highway dividing Union Square and East Somerville? Its steel is rusted and flaking, its concrete pockmarked and crumbling. The underside is a lunar landscape of concrete dust, litter, and pigeon droppings.

“It just repels you,” said Hayes Morrison, Somerville’s director of transportation and infrastructure, shuddering at the thought of walking beneath the eroding span, which carries the McGrath Highway (Route 28) over surface streets.

Your comment is subject to the rules of our Posting Policy

This comment may appear on your public profile. Public Profile FAQ

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week