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
Add Burlingame town with start date from incorporation
Add Burlingame streets from USGS 1892 topographic map
Add street grid, railroad tracks from Sanborn 1908 map
Extend El Camino Real further in San Mateo County