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Historic Bridges in California

4,414 bridges built before 1951 in California still in service today.

Bridges Built Before 1951

The United States has 4,414 bridges in California built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.

Clear
Bridge State Condition Year Built Age (Years) ADT
NAPA RIVER OVERFLOW California Fair 1910 116 2,600
DUTCH HENRY CREEK California Good 1910 116 484
S FK STANISLAUS RIVER California Fair 1910 116 275
SAN MATEO CREEK California Good 1910 116 8,530
PILARCITOS CREEK California Poor 1910 116 42
LOS GATOS CREEK California Fair 1910 116 20,350
SARATOGA CREEK California Good 1910 116 10,769
ORESTIMBA CREEK California Fair 1910 116 122
DEADMAN CREEK California Good 1910 116 85
FANCHER CREEK CANAL California Fair 1910 116 12,102
LITTLE CHOLAME CREEK California Fair 1910 116 160
ESTRELLA RIVER California Good 1910 116 100
METRO California Good 1910 116 4,284
LOS ANGELES RIVER California Good 1910 116 30,000
RUBIO WASH California Good 1910 116 32,400
EEL RIVER California Fair 1911 115 5,300
SACRAMENTO RIVER OVFL California Poor 1911 115 1,500
HAMILTON CREEK California Fair 1911 115 106
SACRAMENTO UP BNSF AMTRA California Fair 1911 115 4,938
MC CUNE CREEK California Fair 1911 115 1,521
LINDA AVENUE California Fair 1911 115 8,058
STEVENS CREEK (FREMONT) California Fair 1911 115 14,369
SAN FRANCISQUITO CREEK California Fair 1911 115 3,000
DEL PUERTO CREEK California Fair 1911 115 1,823
DRY CREEK CANAL California Fair 1911 115 7,818
SAN LUIS OBISPO CREEK California Fair 1911 115 3,000
HONDO BARRANCA California Good 1911 115 18,000
TAPO CANYON CREEK California Good 1911 115 24,000
METROLINK & UP RR CREEK California Fair 1911 115 6,100
RUBIO WASH California Good 1911 115 30,846
OAK RUN CREEK California Fair 1912 114 530
SHORT CREEK California Good 1912 114 11,500
LAKE DRAW California Good 1912 114 11,500
LONG CREEK California Good 1912 114 6,800
NORTH FORK FEATHER RIVER California Fair 1912 114 170
WILSON CREEK California Good 1912 114 572
LITTLE CHICO CREEK California Fair 1912 114 18,400
BIG CHICO CREEK California Fair 1912 114 24,621
SWARTZ CREEK California Good 1912 114 346
TAYLOR CREEK California Fair 1912 114 12,000
LONE TREE CREEK California Fair 1912 114 100
MOKELUMNE RIVER California Fair 1912 114 23
WOODS CREEK California Good 1912 114 375
CERES MAIN CANAL California Fair 1912 114 7,400
M.I.D. LATERAL #6 California Fair 1912 114 9,500
ATWATER CANAL California Fair 1912 114 4,000
STRIPED ROCK CREEK California Good 1912 114 50
LITTLE DRY CREEK California Fair 1912 114 67,000
FOWLER SWITCH CANAL California Fair 1912 114 4,000
KERN ISLAND CANAL California Fair 1912 114 19,675

About Historic Bridge Data

Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.

All Bridges Poor Condition Scour Critical Bridge Stats