From Framingham Department of Public Works:

Beginning today, July 18 due to the location of the sewer main, School Street will be closed at the intersection of Concord Street to all northbound traffic, southbound traffic will be able to continue to travel south on School Street through the work zone to access Concord Street. 

All traffic wishing to enter School Street will be detoured to Old Connecticut Path, from Old Connecticut Path to Hamilton Street, and from Hamilton to School Street while construction is in progress.

Construction activities are scheduled to take place daily between the hours of 7 a.m. and 4 p.m.