State Overview · 2025 Data
Louisiana Bridge Conditions
Louisiana has 13K bridges in the FHWA National Bridge Inventory. 3.9K (31%) are structurally deficient. Average bridge age is 44 years with an average Condition Score of 53/100.
13K
Total Bridges
31%
Deficient
44 yrs
Avg Age
53
Avg Score
Worst Condition Bridges in Louisiana
I0010F
Score 0/100 · Built 1972 · 138K daily
I0010F
Score 0/100 · Built 1972 · 138K daily
I0010F
Score 0/100 · Built 1972 · 138K daily
I0010F
Score 0/100 · Built 1974 · 138K daily
I0010F
Score 0/100 · Built 1974 · 138K daily
I0010F
Score 0/100 · Built 1975 · 138K daily
I0010F
Score 0/100 · Built 1971 · 126K daily
I0010F
Score 0/100 · Built 1971 · 126K daily
I0010C
Score 48/100 · Built 1960 · 154K daily
I0010C
Score 51/100 · Built 1966 · 181K daily
I0010C
Score 51/100 · Built 1967 · 138K daily
I0010C
Score 57/100 · Built 1964 · 187K daily
US0090-BB
Score 62/100 · Built 1960 · 154K daily
I0010B
Score 62/100 · Built 1967 · 122K daily
I0010B
Score 63/100 · Built 1968 · 197K daily
I0010B
Score 63/100 · Built 1968 · 197K daily
I0010B
Score 63/100 · Built 1969 · 173K daily
I0010B
Score 66/100 · Built 1967 · 202K daily
I0010B
Score 66/100 · Built 1967 · 197K daily
I0010B
Score 66/100 · Built 1967 · 197K daily
Highest Traffic Bridges in Louisiana
I0010B
202K daily · Score 66/100 · Built 1967
I0010B
197K daily · Score 68/100 · Built 1963
I0010B
197K daily · Score 63/100 · Built 1968
I0010B
197K daily · Score 66/100 · Built 1967
I0010B
197K daily · Score 66/100 · Built 1967
I0010B
197K daily · Score 63/100 · Built 1968
I0010B
195K daily · Score 70/100 · Built 1967
I0010C
187K daily · Score 57/100 · Built 1964
I0010C
181K daily · Score 51/100 · Built 1966
I0010B
181K daily · Score 74/100 · Built 2013
I0010B
173K daily · Score 63/100 · Built 1969
I0010B
169K daily · Score 67/100 · Built 1962
US0090-BB
154K daily · Score 62/100 · Built 1960
US0090-BB
154K daily · Score 74/100 · Built 1995
US0090-BB
154K daily · Score 67/100 · Built 1985
US0090B
154K daily · Score 74/100 · Built 1988
US0090-BB
154K daily · Score 78/100 · Built 1986
I0010C
154K daily · Score 48/100 · Built 1960
I0010B
138K daily · Score 78/100 · Built 2013
I0010B
138K daily · Score 78/100 · Built 2019