William Hood

SP - Dumbarton Bridge (Alameda County, California)
Built 1910
Abandoned baltimore through truss bridge over San Francisco Bay on Caltrain

SP - Lucin Cutoff Trestle (Box Elder County, Utah)
Engineer, 1904
Lost Timber stringer over Great Salt Lake on Southern Pacific Railroad
Replaced by earthen causeway

UP - Tunnel No. 10 (Kern County, California)
Built 1876
Tunnel on UP/BNSF railroads (formerly SP/ATSF)
Open to traffic

UP - Tunnel No. 9 (Tehachapi Loop) (Kern County, California)
Built 1876
Tunnel under .73 mile loop crosses under itself on UP (former SP) Railroad
Open to traffic