Therefore , the Bayview Bridge was built to alleviate traffic over the older bridge .
During the 1980s , it was decided that the Quincy Memorial Bridge , though still structurally sound , was insufficient for traffic .
The Bayview Bridge was built to alleviate traffic over the older bridge .
During the 1980s , it was decided that the Quincy Memorial Bridge , though still structurally sound , was insufficient for traffic .