State Route 905 (SR 905), also known as the Otay Mesa Freeway, is an state highway in San Diego, in the southwestern part of the U.S. state of California. It connects I-5 and I-805 in San Ysidro to the Mexican border at Otay Mesa. The entire highway from I-5 to the international border is a freeway with a few exits that continues east from the I-805 interchange before turning southeast and reaching the border. SR 905 formerly followed Otay Mesa Road, which had been in existence since at least 1927. Before it was SR 905, the route was first designated as part of SR 75, before it was redesignated as SR 117. The freeway was completed between I-5 and Otay Mesa Road in 1976. The border crossing opened in 1985 after several delays in obtaining funding for construction on what would become SR 905. After becoming SR 905 in 1986, the highway was converted to first an expressway in 2000 and then a freeway in 2010 and 2011. Plans are for this highway to eventually become known as I-905. Route description SR 905 begins at the intersection of Tocayo Avenue and Oro Vista Road in Nestor. It begins as a freeway, intersecting with I-5 at a partial cloverleaf interchange. After interchanges with Beyer Boulevard and Picador Boulevard, the freeway then intersects I-805. Following this, SR 905 veers southeast to parallel Otay Mesa Road, with interchanges at Caliente Avenue (in Pacific Gateway Park), Britannia Boulevard, and La Media Road. Following those interchanges, SR 905 also interchanges with the SR 125 toll road and the SR 11 freeway, which is planned to be a toll facility that will serve a new border crossing east of Otay Mesa. Immediately after, SR 905 turns south to its final interchange at Siempre Viva Road before the route ends at the Otay Mesa Port of Entry, which traffic of large trucks must use to cross the border. SR 905 is part of the California Freeway and Expressway System and part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. In 2013, SR 905 had an annual average daily traffic (AADT) of 58,000 between Beyer Boulevard and I-805, and 18,400 around the I-5 junction, the former of which was the highest AADT for the freeway. History What was known as the