Bridge Safety in Louisiana
12,684 bridges — 1,423 Poor condition — avg age 43 years.
Bridge Inventory
| Total Bridges | 12,684 |
| Good Condition | 4,802 |
| Fair Condition | 6,459 |
| Poor Condition | 1,423 |
| Oldest Bridge | Built 1908 |
| Average Age | 43 years |
Condition Summary
| % Good | 37.9% |
| % Fair | 50.9% |
| % Poor | 11.2% |
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.