Concrete became dislodged in Prudential Tunnel and fell to road, MassDOT says
MassDOT said a section of "non-structural concrete at an expansion joint" under Huntington Avenue fell into a travel lane Friday afternoon.
Concrete debris falls onto highway in Prudential Tunnel in Boston, damaging some cars
Officials said that “non-structural concrete at an expansion joint” below Huntington Avenue became dislodged and fell into a ...
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13 Alert Traffic: Fred Hartman Bridge NB lanes reopened following emergency expansion joint repairs
Expansion joints are the long strips you see between sections of road on a bridge. They allow the concrete to move without cracking in conditions like extreme heat. This is not an uncommon issue.