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
Muddy Bayou Louisiana Good 2024 30.5 m 630
LEES CREEK Louisiana Good 1983 29.0 m 630
ALGIERS CANAL Louisiana Good 2012 15.8 m 626
ALGIERS CANAL Louisiana Good 2012 15.8 m 626
ALGIERS CANAL Louisiana Good 2012 15.8 m 626
ALGIERS CANAL Louisiana Good 2012 15.8 m 626
ALGIERS CANAL Louisiana Good 2012 15.8 m 626
I-49 Louisiana Fair 2010 149.4 m 626
GRAND BAYOU Louisiana Good 1991 121.9 m 626
CREEK Louisiana Fair 1991 24.4 m 626
BAYOU MALLET Louisiana Fair 1987 29.0 m 625
I-49 Louisiana Fair 2010 121.9 m 625
NANCE BRANCH Louisiana Poor 1983 29.0 m 625
COULEE Louisiana Good 1994 17.4 m 624
CREEK Louisiana Poor 1967 11.9 m 624
SHORT PRONG Louisiana Fair 1967 23.2 m 624
DRY BRANCH Louisiana Poor 1967 23.5 m 624
CYPRESS BAYOU RELIEF Louisiana Poor 1969 17.4 m 622
CYPRESS BAYOU Louisiana Poor 1969 40.8 m 622
WALKER CREEK RELIEF Louisiana Fair 1981 23.5 m 622
WALKER CREEK BRIDGE Louisiana Fair 1981 23.5 m 622
ILE DES CANNES COULEE Louisiana Good 2013 36.6 m 620
COULEE Louisiana Poor 1977 11.9 m 620
FOUR-MILE BRANCH Louisiana Fair 1998 7.3 m 620
BROWN-EYE CREEK Louisiana Fair 1998 6.7 m 620
LITTLE BEAR & RATTON CR. Louisiana Good 1998 42.7 m 620
CREEK Louisiana Fair 1998 8.2 m 620
LOCK BRANCH Louisiana Good 1998 30.5 m 620
KEES BRANCH Louisiana Fair 1998 24.4 m 620
20 ARPENT CANAL Louisiana Fair 1988 17.4 m 618
BLACK LAKE BAYOU RELIEF Louisiana Good 2015 103.6 m 618
MOUND BAYOU Louisiana Good 1967 158.5 m 618
BLACK BAYOU Louisiana Poor 1987 11.9 m 617
BAYOU MALLET Louisiana Fair 1960 18.3 m 616
DRAINAGE CANAL Louisiana Good 1960 8.2 m 616
GRAND BAYOU RELIEF Louisiana Good 2013 24.4 m 615
GRAND BAYOU Louisiana Good 2013 48.8 m 615
FLAT RIVER Louisiana Fair 1989 28.0 m 613
Portage Bayou Louisiana Good 2019 36.6 m 612
CREEK Louisiana Fair 1974 17.4 m 611
CREEK Louisiana Fair 1974 17.4 m 611
CREEK Louisiana Good 1992 11.6 m 611
MESSER CREEK Louisiana Fair 1977 17.4 m 611
CASTOR CREEK Louisiana Good 1985 182.9 m 611
CREEK Louisiana Poor 1974 11.9 m 611
20 ARPENT CANAL Louisiana Good 2015 19.8 m 610
BLACK BAYOU Louisiana Fair 2009 30.5 m 610
Bayou Vermilion Louisiana Good 2022 48.8 m 610
Bayou Teche Louisiana Fair 1990 216.4 m 610
HICKORY BRANCH Louisiana Fair 1984 52.1 m 610

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.