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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.

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BridgeLocationConditionYear BuiltLengthADT
MIDDLE SLOUGH Louisiana Good 2005 31.1 m 21,736
YELLOW WATER RIVER Louisiana Fair 1968 73.8 m 21,736
I-55 Louisiana Fair 1970 94.5 m 21,736
YELLOW WATER RIVER REL. Louisiana Fair 1970 53.3 m 21,736
COULEE MINE Louisiana Fair 1967 30.5 m 21,734
BOAGNI SWAMP Louisiana Good 1951 9.8 m 21,716
MISSISSIPPI RIVER Louisiana Fair 1940 1,281.7 m 21,661
LA0031 Louisiana Good 1981 62.5 m 21,593
CANE RIVER Louisiana Good 2003 137.2 m 21,589
SONI DRAIN CANAL Louisiana Good 1996 32.9 m 21,574
KCS RR XING Louisiana Good 2008 361.2 m 21,505
Soniat Canal Louisiana Good 2005 37.5 m 21,463
Suburban Canal Louisiana Good 2003 7.3 m 21,460
Canal 4 Louisiana Good 2003 12.5 m 21,460
PONCHATOULA CREEK Louisiana Fair 1931 56.7 m 21,457
LA975 E FLOODWAY LA3000 Louisiana Fair 1972 12,800.4 m 21,450
BAYOU CONWAY Louisiana Fair 1969 42.7 m 21,372
US 61 & KCS RR Louisiana Fair 1975 563.3 m 21,372
PANAMA CANAL Louisiana Fair 1975 53.3 m 21,372
NATALBANY RIVER Louisiana Good 1970 164.6 m 21,300
DAWSON CREEK/BLUEBONNET Louisiana Fair 1978 61.6 m 21,296
DAWSON CREEK/BLUEBONNET Louisiana Fair 1978 61.3 m 21,296
CANAL NO. 3 Louisiana Fair 1966 12.2 m 21,290
FRENCH BRANCH Louisiana Fair 1984 24.4 m 21,254
I-20 Louisiana Fair 1963 79.9 m 21,250
KAHNS RD/MO PAC RR Louisiana Good 1994 430.7 m 21,189
STREAM NO NAME Louisiana Good 1926 25.9 m 21,189
VETERANS MEMORIAL BLVD Louisiana Good 1977 474.3 m 21,175
CREEK Louisiana Good 1963 11.3 m 21,140
DAWSON CREEK BRIDGE Louisiana Good 2010 48.8 m 21,101
CREEK Louisiana Good 2011 7.6 m 21,080
BRUSH BAYOU Louisiana Good 1963 10.4 m 21,080
CREEK Louisiana Good 1984 12.2 m 21,080
CREEK Louisiana Good 1984 14.6 m 21,080
CREEK Louisiana Good 1963 10.4 m 21,080
DRAINAGE CANAL Louisiana Fair 1986 54.9 m 21,048
LA 103-COURTABLEAU BAYOU Louisiana Good 1987 295.0 m 21,048
DRAINAGE CANAL Louisiana Fair 1986 61.0 m 21,048
BAYOU COCODRIE Louisiana Fair 1986 68.6 m 21,048
REST AREA Louisiana Fair 1986 73.2 m 21,048
LA 745 BOEUF BAYOU Louisiana Good 1986 177.4 m 21,048
DRAINAGE CANAL Louisiana Fair 1986 42.7 m 21,048
PONCHATOULA CREEK C Louisiana Fair 1975 54.9 m 21,045
CHARENTON CANAL Louisiana Fair 1978 891.2 m 21,000
B DESALLEMANDS Louisiana Fair 1961 795.8 m 20,956
B CROCODILE Louisiana Fair 1965 9.8 m 20,956
MISSISSIPPI RIVER Louisiana Fair 1989 1,280.8 m 20,933
ROCKY BAYOU Louisiana Fair 1997 54.9 m 20,902
LA. & ARKANSAS RR Louisiana Fair 1997 68.6 m 20,902
US 71 ROCKY BAYOU Louisiana Fair 1999 417.6 m 20,902

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.