CORONA – Motorists are dealing with more changes as the 91 Project moves ahead. The eastbound Grand Boulevard off-ramp was permanently closed Wednesday and the westbound on-ramp faces the same fate on December 14th. In preparation for that, a third lane has been added to the westbound 91 on-ramp at Main Street. The ease the flow on nearby surface streets, the 2nd Street extension between Lincoln Avenue and West Grand Boulevard opens this coming Monday. A week later, the Lincoln Avenue turn lanes will be restored between D Street and the 91 freeway, according to the Riverside County Transportation Commission.