City of Rockford, IL, Public Works recommends preferred route for trucks coming from west on Chestnut St to use S Church St/Cedar St to get to S Main St.  Chestnut St/S Main St intersection, for trucks turning right onto S Main St from Chestnut St, is tight and semis/large trucks tend to strike poles on the SW corner of intersection.  Trucks can still use S Main St but  prefer aforementioned route when turning right onto S Main St from Chestnut St.