170 A.2d 687 MARGUERITE M. NELSON vs. MAINE TURNPIKE AUTHORITY Supreme Judicial Court of Maine. Androscoggin. Opinion, April 24, 1961. Torts. Sovereign Immunity. Turnpikes. Defective Highways. The doctrine of sovereign immunity extends to the Maine Turnpike Authority. Statutory authority to “sue” and “be sued” does not result in waiver of sovereign immunity in tort cases […]