Early San Francisco and San Jose Railroad service on Valencia
Add Market and Valencia train depot
Add end of San Mateo Interurban
Add Bayshore Highway (early highway) through northern San Mateo county
Add ~1929 road from bridge to Bayshore Highway
Add 1967 San Mateo-Hayward Bridge
Add 1929 San Francisco Bay Toll Bridge (San Mateo-Hayward Bridge)
Add CA 92 section completed in 1963
Tag start date on SF&SJ railroad between Colma and Millbrae
Add bridges that are identified as historic properties "San Mateo 1903 Underpasses"
Add street names and start dates from Western Addition to San Mateo
Add end date for streetcar tracks
Add electric street car tracks from around Millbrae through Burlingame
Add street grid from 1896 subdivision map