Dorchester 37 Wellesley Park, Dorchester Rear of 37 Wellesley Park, D.R.T. Fence at Park St. and Geneva Ave., Dorchester D.R.T. at 47 Melville Ave. Bird St., Dorchester, near Columbia Rd. Gibraltar bumper Blue Hill Ave. opposite charlotte St., Franklin Pk. Gibraltar bumper Blue Hill Ave. opposite charlotte St., Franklin Pk. Old Colony Ave. n. of Dorchester St. progress on track laying Old Colony Ave. at Dorchester St. rebuilding crosswalk Old Colony Ave. at Dorchester St., Columbia Rear of Wellesley Park, D.R.T. Dorchester - Columbus Ave. Storehouse, George St. yard Dorchester Tunnel Dorchester Tunnel Dorchester Tunnel Dorchester Tunnel Dorchester Tunnel Dorchester Tunnel Beyond Ashmont Station near Van Winkle St. Codman Sq. car and bus stop Codman Sq. car and bus stop Dorchester, Codman Sq. Codman Sq., car and bus stop Ashmont Station Beale St. and Mattapan loops condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Bridge on Gallivan Boulevard, Codman Sq. Yards Ashmont Station at parking area and bus loop Columbia Station Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Ashmont Station condition of concrete Columbia Station overpass to parking area Columbia Station overpass to parking area Columbia Station overpass to parking area Columbia Station overpass to parking area Columbia Station billboards Savin Hill overpass - condition of concrete