The state legislature extended the highway in 1925, defining it to run from near the intersection of Army Street (Cesar Chavez Street) and San Bruno Avenue in San Francisco to a point in San Jose. The governor approved the bill with the stipulation that only the portion between the city limits of San Francisco and San Jose would be a state highway. Construction between South San Francisco and Burlingame had begun by 1924, funded by a $500,000 contribution from San Francisco, and was completed in 1928. A disconnected segment north of San Mateo was built by the state at the same time. It was not until February 1929 that the road was fully paved between San Francisco and Burlingame, and on October 20, 1929 the new highway was officially dedicated to San Mateo, several months after the connecting San Mateo-Hayward Bridge opened (at what is now Third Avenue). Even then, motorists had to wait until May 7, 1931 to reach Jefferson Avenue in Redwood City (near the west end of the four-year-old Dumbarton Bridge). The roadway was extended to Oregon Avenue in Palo Alto in mid-1932, Lawrence Station Road in mid-1933, and to Lafayette Street near Santa Clara, across the Guadalupe River from San Jose, by 1934. The final piece to Oakland Road (13th Street) in San Jose, which was then the main road - Legislative Route 5 and Sign Route 17 - between San Jose and Oakland, was dedicated on June 12, 1937, over ten years after the Dumbarton Bridge opened in January 1927.