In 1986, the project revamping the I-8 interchange was under way, at a cost of $80 million (about $ in dollars); it would allow for SR 125 to be extended north past I-8 to Fletcher Parkway. That year, SR 125 was truncated to begin at SR 905 by the Legislature, as the latter was formed as a route from I-5 to the border. In 1988, work was under way to add lanes to SR 125 from south of Lemon Avenue to the northern terminus, at a cost of $17.2 million. The next year, some Bonita residents raised objections about the proposed extension south of La Mesa, as they were concerned about additional congestion and urbanization from the freeway going through Bonita.