During the late 1960s, the I-280 (Junipero Serra Freeway), followed by I-380, was built through San Bruno. The San Bruno Planning Commission (then chaired by Peter Weinberger, brother of Caspar Weinberger) reviewed and approved plans for two major shopping centers, Bayhill (located on the old U.S. Navy property between San Bruno Avenue and Sneath Lane) and Tanforan. With final approval by the San Bruno City Council, construction proceeded on these major retail developments. Prior to these developments, most of the city's retail businesses were located on San Mateo Avenue and El Camino Real.