State Overview · 2025 Data
California Bridge Conditions
California has 26K bridges in the FHWA National Bridge Inventory. 5.2K (20%) are structurally deficient. Average bridge age is 56 years with an average Condition Score of 57/100.
26K
Total Bridges
20%
Deficient
56 yrs
Avg Age
57
Avg Score
Worst Condition Bridges in California
INTERSTATE 405F
Score 0/100 · Built 1959 · 374K daily
STATE ROUTE 91F
Score 0/100 · Built 1959 · 319K daily
STATE ROUTE 91F
Score 0/100 · Built 1959 · 319K daily
STATE ROUTE 91F
Score 0/100 · Built 1959 · 319K daily
INTERSTATE 5F
Score 0/100 · Built 1958 · 300K daily
INTERSTATE 405F
Score 0/100 · Built 1966 · 300K daily
INTERSTATE 405F
Score 0/100 · Built 1966 · 300K daily
STATE ROUTE 91F
Score 0/100 · Built 1970 · 300K daily
U.S. HIGHWAY 101F
Score 0/100 · Built 1958 · 296K daily
U.S. HIGHWAY 101F
Score 0/100 · Built 1958 · 296K daily
INTERSTATE 405F
Score 0/100 · Built 1963 · 294K daily
STATE ROUTE 91F
Score 0/100 · Built 1971 · 290K daily
U.S. HIGHWAY 101F
Score 0/100 · Built 1959 · 289K daily
INTERSTATE 80F
Score 0/100 · Built 1936 · 288K daily
INTERSTATE 405F
Score 0/100 · Built 1961 · 285K daily
U.S. HIGHWAY 101F
Score 0/100 · Built 1959 · 285K daily
INTERSTATE 5F
Score 0/100 · Built 1958 · 279K daily
INTERSTATE 210F
Score 0/100 · Built 1976 · 269K daily
INTERSTATE 10F
Score 0/100 · Built 1964 · 268K daily
INTERSTATE 405F
Score 0/100 · Built 1968 · 266K daily
Highest Traffic Bridges in California
INTERSTATE 80B
550K daily · Score 67/100 · Built 1955
INTERSTATE 80B
531K daily · Score 67/100 · Built 1954
INTERSTATE 80C
531K daily · Score 59/100 · Built 1954
INTERSTATE 405F
374K daily · Score 0/100 · Built 1959
STATE ROUTE 60A
339K daily · Score 82/100 · Built 1970
ROUTE 60B
339K daily · Score 75/100 · Built 1970
ROUTE 5B
330K daily · Score 60/100 · Built 1955
INTERSTATE 5B
327K daily · Score 66/100 · Built 1959
INTERSTATE 5B
324K daily · Score 70/100 · Built 1992
STATE ROUTE 91F
319K daily · Score 0/100 · Built 1959
STATE ROUTE 91F
319K daily · Score 0/100 · Built 1959
STATE ROUTE 91F
319K daily · Score 0/100 · Built 1959
ROUTE 5B
316K daily · Score 78/100 · Built 1991
INTERSTATE 5B
316K daily · Score 70/100 · Built 1992
INTERSTATE 5B
309K daily · Score 78/100 · Built 1992
INTERSTATE 110B
300K daily · Score 67/100 · Built 1954
INTERSTATE 110B
300K daily · Score 78/100 · Built 1996
INTERSTATE 110B
300K daily · Score 68/100 · Built 1956
INTERSTATE 110C
300K daily · Score 56/100 · Built 1996
INTERSTATE 110B
300K daily · Score 60/100 · Built 1956