That part of the Thruway system extending from, and including, the toll barrier at Woodbury to, and including, the toll barrier at Williamsville, and that portion of the Thruway system identified as the Berkshire section from its intersection with the main line between Coxsackie and Selkirk to, and including, the toll barrier at Canaan, and that portion of the Thruway system extending from, and including, the toll barrier at Lackawanna, to, and including, the toll barrier at Ripley.