Cunningham Bridge on Atlantic Avenue in Cohasset is coming down, with demolition scheduled to be complete by Sept. 12 and a new bridge going up in its place.
In the meantime, vehicles and pedestrians will have to find other ways to get across the Little Harbor inlet, just down the road from popular Sandy Beach.
Officials said traffic will be detoured until June 30, 2018.
The state is building and paying for the new $6.25 million span, after determining that the existing one had structural problems and didn’t meet current safety standards.
The old bridge dated from 1962, and had replaced one from the 1890s.
Some neighbors and local officials had objected to the new design and to the lengthy detour during the construction.Johanna Seltz can be reached at firstname.lastname@example.org.