Bridge Safety in Louisiana

12,684 bridges — 1,423 Poor condition — avg age 43 years.

Bridge Inventory

Total Bridges12,684
Good Condition4,802
Fair Condition6,459
Poor Condition1,423
Oldest BridgeBuilt 1908
Average Age43 years

Condition Summary

% Good37.9%
% Fair50.9%
% Poor11.2%

Highest-Traffic Poor Condition Bridges in Louisiana

Poor condition bridges sorted by daily traffic — the most urgent safety concerns.

Bridge Condition Year Built ADT Length
SERVICE RD & UPT R/R Poor 1960 154,311
MISSISSIPPI RIVER Poor 1985 154,311
VET MEM HWY Poor 1967 137,542
MARSHALL ST/LA 1/RRS. Poor 1965 98,318
LK SHORE DR&KCSRR Poor 1965 98,318
M.P. RR Poor 1965 98,318
LK SHORE DR&KESRR Poor 1965 98,318
M.P. RR Poor 1965 98,318
ON RAMP TO I-20 WBL Poor 1980 87,567
MARSHALL ST&LA&KCI-20 Poor 1965 87,567
I-20 RAMP W-N I-20 MKT S Poor 1985 87,567
SABINE RELIEF Poor 1954 86,969
CALCASIEU RIVER RR STS Poor 1952 86,600
ST. LOUIS & SW RR Poor 1965 84,672
LA 385 Poor 1961 73,488
STL&SW-KCS RR/WESTERFIEL Poor 1966 69,892
I0049/US0167 Poor 1968 56,748
R/R CITY STREETS LA 611 Poor 1957 55,994
CREEK Poor 1963 50,895
I-610 & I-10 Poor 1963 49,634

Oldest Bridges in Louisiana

Bridge Condition Year Built Age ADT
JUDD BAYOU Fair 1908 118 yrs
INNER HARBOR NAVIGATION Poor 1919 107 yrs
MARTEAU BAYOU Poor 1919 107 yrs 40
DRAIN Good 1920 106 yrs 4,992
CHOCTAW BAYOU Fair 1921 105 yrs 100
YOUNGS BAYOU Fair 1922 104 yrs 8,579
STREAM Fair 1923 103 yrs 4,376
BAYOU MORRIS Poor 1923 103 yrs 15
BAYOU POYDRAS Good 1923 103 yrs 1,351
DRAINAGE CANAL Good 1923 103 yrs 1,204

Bridge Safety in Louisiana

Bridge condition data for Louisiana comes from the FHWA National Bridge Inventory. All publicly accessible bridges with a span over 20 feet are inspected at least every 24 months by certified bridge inspectors.