The state Department of Transportation has scheduled two public information sessions on its proposal to close the state-operated Chester-Hadlyme and Rocky Hill-Glastonbury ferries:    – 6 p.m. to 8 p.m.on Aug. 22 in Council Chambers in the Rocky Hill Town Hall, at761 Old Main St. in Rocky Hill     -6 p.m. to 8 p.m.on Aug. 25 at the Chester Meeting House, at 4 Liberty St. in Chester