sentences:  All four lanes of the Griffin bridge were opened to southbound traffic on July 20, 2019.A new merge pattern just north of the bridge, better enabling traffic from U.S. Route 4 and the Spaulding Turnpike to utilize the four southbound lanes, went into effect in April 2020.The General Sullivan Bridge is a deck truss bridge, with a through truss span to accommodate ship traffic, that formerly carried the roads that now travel over the Little Bay Bridges.