Browse Bridge Database
12,684 bridges in the FHWA National Bridge Inventory in Louisiana.
National Bridge Inventory Database
Browse 12,684 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| LA 1/M P RR/LOC RD | Louisiana | Fair | 1968 | 104.2 m | 4,035 |
| HICKORY BRANCH | Louisiana | Fair | 1975 | 17.4 m | 4,030 |
| MCGEE BAYOU | Louisiana | Fair | 1957 | 8.2 m | 4,027 |
| DRAINAGE BAYOU | Louisiana | Poor | 1966 | 23.2 m | 4,025 |
| DRAINAGE CANAL | Louisiana | Poor | 1966 | 11.6 m | 4,025 |
| SMITH BAYOU | Louisiana | Fair | 1969 | 11.6 m | 4,016 |
| Indian Bayou | Louisiana | Fair | 1997 | 34.7 m | 4,016 |
| TRIB. TO BOGGY BAYOU | Louisiana | Good | 2007 | 12.8 m | 4,015 |
| DEADWOOD RD TIGER BAYOU | Louisiana | Fair | 1994 | 2,347.9 m | 4,014 |
| CREEK | Louisiana | Good | 1998 | 106.7 m | 4,014 |
| TIGER BAYOU | Louisiana | Good | 1998 | 48.8 m | 4,014 |
| CHACAHOULA BAYOU | Louisiana | Good | 1998 | 614.8 m | 4,014 |
| Alligator Bayou | Louisiana | Fair | 1998 | 3,681.7 m | 4,014 |
| DRAINAGE CANAL | Louisiana | Good | 1998 | 511.5 m | 4,014 |
| LA662 BAYOU LOURSE | Louisiana | Fair | 1998 | 693.1 m | 4,014 |
| DRAIN CANALS LA.20 RR | Louisiana | Fair | 1995 | 9,005.0 m | 4,014 |
| BUNDICKS CREEK | Louisiana | Fair | 1984 | 182.9 m | 4,012 |
| PONCHITOLAWA CR | Louisiana | Fair | 1976 | 57.9 m | 4,005 |
| DRAINAGE CANAL | Louisiana | Fair | 1962 | 6.7 m | 4,002 |
| BAYOU CALLAHAN | Louisiana | Fair | 1982 | 54.9 m | 4,002 |
| DRAINAGE DITCH | Louisiana | Good | 1960 | 6.4 m | 4,002 |
| CONTRABAND BAYOU | Louisiana | Fair | 1982 | 30.5 m | 4,000 |
| BAYOU MILLET | Louisiana | Good | 1963 | 24.4 m | 4,000 |
| Hogskin Lake Creek | Louisiana | Fair | 1989 | 9.8 m | 4,000 |
| Horseshoe Creek | Louisiana | Fair | 1986 | 9.4 m | 4,000 |
| BRYANT BRANCH | Louisiana | Good | 2003 | 7.0 m | 4,000 |
| YOUNGS BAYOU | Louisiana | Good | 2013 | 42.7 m | 4,000 |
| YOUNGS BAYOU | Louisiana | Good | 2003 | 6.4 m | 4,000 |
| BAYOU FOUNTAIN | Louisiana | Good | 2011 | 36.6 m | 4,000 |
| DRAINAGE CANAL | Louisiana | Fair | 1957 | 24.4 m | 3,996 |
| BAYOU FOUNTIAN | Louisiana | Poor | 1968 | 23.8 m | 3,993 |
| CREEK | Louisiana | Good | 1980 | 7.9 m | 3,989 |
| BAYOU FUSELIER | Louisiana | Fair | 1959 | 42.7 m | 3,987 |
| DRAIN | Louisiana | Good | 1969 | 10.7 m | 3,985 |
| CREEK | Louisiana | Good | 1968 | 10.4 m | 3,985 |
| DRAIN | Louisiana | Good | 1969 | 11.3 m | 3,985 |
| BAYOU DES CYPRAIRRES | Louisiana | Fair | 1988 | 29.9 m | 3,984 |
| BAYOU DES GLAISE | Louisiana | Good | 1981 | 77.4 m | 3,984 |
| BAYOU DES GLAISES | Louisiana | Fair | 2009 | 64.3 m | 3,984 |
| HAIRS CREEK | Louisiana | Fair | 1960 | 36.6 m | 3,980 |
| LA MIDLAND R/R | Louisiana | Fair | 1958 | 44.2 m | 3,980 |
| DRAINAGE CANAL | Louisiana | Poor | 1928 | 10.7 m | 3,974 |
| BEAR CREEK | Louisiana | Fair | 1991 | 11.6 m | 3,959 |
| EAST HOG BRANCH | Louisiana | Fair | 1991 | 48.8 m | 3,959 |
| COOLEY BRANCH | Louisiana | Poor | 1954 | 36.6 m | 3,955 |
| CREEK | Louisiana | Poor | 1954 | 30.5 m | 3,955 |
| I-20 | Louisiana | Poor | 1968 | 73.8 m | 3,950 |
| I-20 | Louisiana | Fair | 1968 | 73.8 m | 3,950 |
| N TUPAWEK BAYOU | Louisiana | Fair | 1978 | 14.0 m | 3,947 |
| CREEK | Louisiana | Fair | 2000 | 24.7 m | 3,941 |
Frequently Asked Questions
The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.
ADT stands for Average Daily Traffic, the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.
Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.