San Diego County
30th Street Bridge [Map] Open-spandrel arch bridge over Switzer Canyon on 30th Street & San Diego Electric RailroadNever built
30th Street Bridge [Map] Lost Timber stringer bridge on 30th Street & San Diego Electric RailroadFilled inBuilt 1908; Replaced with a culvert and filled in 1956-7 Amtrak Bridge [Map · Street View] Concrete tee beam bridge over Mtdb, Bnsf Ry, Amtrak on Carlsbad BlvdOpen to trafficBuilt 1925; rehabilitated 1935
Beach Club Bridge [Map] Concrete tee beam bridge over San Onofre Cr,Beach Club on Old Hwy 101Open to trafficBuilt 1925; rehabilitated 1937
Black Canyon Road Bridge [Map] Open spandrel Concrete arch bridge over Santa Ysabel Creek on Black Canyon RoadBypassed and kept open to pedestrians onlyBuilt 1913
BNSF - Santa Margarita River Bridge [Map · Street View] Pratt through truss bridge over Santa Margarita River on BNSF/MTSD/AmtrakDemolishedOriginally built in 1918, but the center span was washed out in a flood and replaced in 1926; Replaced 2014 Cabrillo Bridge [Map · Street View] Concrete arch bridge over CA 163 on Laurel Street at Balboa Park in San DiegoOpen to trafficBridge construction began in December 1912. The date the bridge was opened has some confusion around it, but historians seem to agree on April 13, 1914
Camino Del Mar Bridge [Map · Street View] Concrete tee beam bridge over Railroad tracks and Jimmy Durante Blvd. ramp on Camino Del MarOpen to trafficBuilt 1927; rehabilitated 1936
Lusardi Creek Bridge [Map] Timber stringer bridge over Lusardi Creek on Black Mountain RoadOpen to pedestrians onlyBuilt 1941. The dirt portion of Black Mountain Road was closed to vehicular traffic around 2004 and is now a popular walking and biking trail
North Torrey Pines Bridge [Map · Street View] Concrete tee beam bridge over Mtdb, Bnsf Ry, & Amtrak on N Torrey Pines RoadOpen to traffic; major renovation in 2012Built 1933; major restoration in 2012
Old Highway 395 Bridge [Map · Street View] Open-spandrel arch bridge over Penasquitos Creek on Bike path (formerly US 395)Open to pedestrians onlyBuilt in 1949, abandoned in 1967, later used as a bike path
Richmond Street Bridge [Map · Street View] Concrete bridge over Cabrillo Freeway (CA 163) on former Richmond StreetOpen to pedestrians onlyBuilt 1946-47; bridge and ramp closed to traffic ca. 2002 in provide congestion relief for the Cabrillo Freeway
SD&A - Tunnel #4 [Map] Tunnel under US-Mexico Border on San Diego & Arizona RailwayOpen to traffic
SDERy - Balboa Park Viaduct #1 [Map] Lost Deck plate girder bridge over Old Alignment of Zoo Place on San Diego Electric RailroadRemoved but not replacedBuilt 1917; Removed ?
SDERy - Balboa Park Viaduct #3 [Map] Lost Deck plate girder bridge over Morley Field Drive on San Diego Electric RailroadRemoved but not replacedBuilt 1917; Removed ?
SDERy - Point Loma Highway Viaduct [Map] Lost Pony/through plate girder bridge over Point Loma Highway & Atchison, Topeka & Santa Fe Railway on San Diego Electric RailroadRemovedBuilt 1925 Sweetwater River Bridge [Map · Street View] Parker through truss bridge over Sweetwater River on a pedestrian path on the old alignment of CA 94 in the San Diego Wildlife RefugeOpen to pedestriansBuilt 1929