to the south were built.) Since 1970, I-205 has seen few changes. The largest have been widening from four to six lanes west of Business 205 in 1999, and converting two diamond interchanges to partial cloverleafs — Grant Line Road in about 1997 and Mountain House Parkway in 2007 (including ramp meters). As of Summer 2009, I-205 has been widened to six lanes (three in each direction) for its entire route. Also, the 1970s concrete pavement has been resurfaced with fresh asphalt from the junction of I-5 to due east of the 11th street connector ramp. Future Caltrans has plans to improve merging distances by constructing auxiliary lanes between the interchanges, and to add new interchanges at Lammers Road and Paradise Road. Caltrans is also planning to add one HOV lane in each direction between I-580 and I-5. Exit list Tracy business loop Interstate 205 Business (I-205 Bus.) is a locally maintained business route. It locally follows 11th Street, the historic four-lane alignment of U.S. Route 50, through Tracy. The route begins at a split with I-205 west of the city. After passing through downtown Tracy, it curves northeast at a junction with former SR 33, which has been truncated to the south at I-5. The final stretch of I-205 Bus. runs diagonally to a merge with I-5, which comes from the south and continues northeast along the former US 50 alignment. The east end of I-205 Bus. is about southwest of the end of I-205; normally I-205 Bus. would return to I-205 at both ends, but here I-205 and I-205 Bus. both end at I-5. See also References External links California @ AARoads.com – Interstate 205 Caltrans: Route 205 highway conditions California Highways: I-205 05-2 Roads in Alameda County, California Roads in San Joaquin County, California 2 California 2 California Lincoln Highway 205 05-2 California