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
WHITE RIVER California Fair 1947 79 200
WHITE RIVER California Fair 1947 79 75
COTTONWOOD CREEK California Fair 1947 79 420
TULARE IRRIG DIST CANAL California Fair 1947 79 75
WHITE RIVER California Good 1947 79 300
CAMERON CREEK California Fair 1947 79 500
VILLA CREEK California Fair 1947 79 9,500
SANTA ROSA CREEK California Good 1947 79 128
STENNER CREEK California Fair 1947 79 50
FREEMAN GULCH California Good 1947 79 4,400
BRANCH TEHACHAPI CREEK California Good 1947 79 42,400
POSO CREEK OVERFLOW California Fair 1947 79 90,000
BEARDSLEY CANAL California Fair 1947 79 4,300
BUENA VISTA CREEK California Good 1947 79 1,400
EAST SIDE CANAL California Fair 1947 79 3,600
NORTH FORK MATILIJA CRK California Fair 1947 79 570
SOLSTICE CANYON CREEK California Good 1947 79 29,750
MISSION RD-E10 ON-RAMP California Good 1947 79 140,000
MISSION RD-E10 ON-RAMP California Fair 1947 79 140,000
1ST STREET California Fair 1947 79 140,000
ROUTE 101 California Good 1947 79 50,000
I- 5 N5-N101 S101-S5 California Fair 1947 79 19,500
ROUTE 5 California Fair 1947 79 12,500
ROUTE 101 California Good 1947 79 5,500
INTERSTATE 710 California Fair 1947 79 35,000
UP RR & N103-FORD AV OFF California Poor 1947 79 14,427
ANAHEIM STREET OH California Good 1947 79 14,427
TRAIL CYN California Fair 1947 79 510
E10-VALLEY BLVD OFF-RAMP California Fair 1947 79 85,000
MILL CREEK California Fair 1947 79 5,700
CITY CREEK California Fair 1947 79 12,000
ETIWANDA WASH California Fair 1947 79 117,000
UP RR SPUR California Fair 1947 79 195,000
SAN SEVAINE CREEK California Good 1947 79 195,000
LOWER DEER CREEK CHANNEL California Good 1947 79 22,691
SANTIAGO CREEK CHANNEL California Good 1947 79 55,000
SANTIAGO CREEK California Good 1947 79 1,000
LADD CANYON California Fair 1947 79 2,000
SILVERADO CANYON CREEK California Fair 1947 79 2,000
SILVERADO CANYON CREEK California Poor 1947 79 2,000
SILVERADO CANYON CREEK California Poor 1947 79 2,000
COACHELLA CANAL California Poor 1947 79 11,250
COACHELLA CANAL California Fair 1947 79 721
COLEMAN CREEK California Good 1947 79 4,400
STATE ROUTE 163 California Fair 1947 79 28,400
CAMPO CREEK California Good 1947 79 1,950
STATE ROUTE 163 California Good 1947 79 2,900
6TH AVE-N163 ON RAMP California Good 1947 79 95,000
DULZURA CREEK California Fair 1947 79 7,800
SWEETWATER RIVER California Fair 1947 79 2,500

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.