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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
CORPORATION CANAL Louisiana Fair 1960 13.1 m 12,996
BAYOU LAFOURCHE Louisiana Good 1991 54.9 m 12,957
DRAIN CANAL Louisiana Fair 1969 11.6 m 12,957
DRAIN CANAL Louisiana Fair 1969 11.6 m 12,957
DRAIN CANAL Louisiana Fair 1969 17.4 m 12,957
DRAIN CANAL Louisiana Poor 1969 11.6 m 12,957
MORGANZA FLDWY Louisiana Fair 1945 5,723.5 m 12,942
DRAINAGE Louisiana Good 1999 19.5 m 12,903
DRAINAGE Louisiana Good 1999 8.2 m 12,903
DRAINAGE Louisiana Good 1999 6.7 m 12,903
COULEE Louisiana Good 1999 18.3 m 12,903
BAYOU TIGRE Louisiana Fair 1999 36.6 m 12,903
DRAIN Louisiana Fair 1938 12.8 m 12,900
SELSERS CREEK Louisiana Fair 1938 32.0 m 12,900
CREEK Louisiana Fair 1938 25.3 m 12,900
ARMANCO CANAL Louisiana Fair 1960 24.4 m 12,863
CRIP RAILROAD Louisiana Fair 1977 66.1 m 12,847
BNSF Louisiana Good 1997 528.8 m 12,788
ATCHAF.R/BERWICK BAY Louisiana Poor 1933 1,141.8 m 12,788
I-20 Louisiana Poor 1965 141.7 m 12,786
STREAM Louisiana Fair 1961 16.2 m 12,779
ELBOW BAYOU Louisiana Fair 1961 24.4 m 12,779
Stream Louisiana Good 2020 11.0 m 12,779
CREEK Louisiana Good 1990 9.8 m 12,766
CLAY CUT BAYOU Louisiana Fair 1985 7.3 m 12,730
Tangipahoa River Louisiana Good 2021 114.6 m 12,718
DRAIN Louisiana Fair 1962 30.5 m 12,718
DRAIN Louisiana Good 1962 36.6 m 12,718
SPRING BRANCH Louisiana Fair 1962 115.8 m 12,718
LIVELY BAYOU Louisiana Poor 1965 29.3 m 12,710
BAYOU Louisiana Good 2013 54.9 m 12,700
READ RD. Louisiana Fair 1973 433.1 m 12,699
BLACK BAYOU RELIEF Louisiana Fair 1945 29.3 m 12,669
UNION PACIFIC R/R Louisiana Fair 2007 661.4 m 12,669
BALLARD BAYOU Louisiana Good 2007 30.5 m 12,669
BLACK BAYOU Louisiana Good 1945 68.3 m 12,669
HURRICANE CREEK Louisiana Good 2004 42.1 m 12,669
OLD GENTILLY RD Louisiana Good 1966 323.1 m 12,658
STREAM NO NAME Louisiana Fair 1930 10.4 m 12,649
TUPAWEK BAYOU Louisiana Fair 1996 61.0 m 12,648
BAYOU DULARGE Louisiana Fair 1977 704.4 m 12,596
BAYOU PIERRE Louisiana Good 2011 61.0 m 12,580
ATCHAFALAYA R @ KSPNGS Louisiana Fair 1988 1,047.0 m 12,578
Comite River Diversion Louisiana Good 2024 96.3 m 12,575
CREEK Louisiana Good 1969 12.2 m 12,522
CREEK Louisiana Good 1969 11.3 m 12,522
CREEK Louisiana Fair 1932 10.1 m 12,466
BAYOU Louisiana Fair 2007 10.7 m 12,466
DRAINAGE Louisiana Fair 2007 7.3 m 12,466
INDIAN BAYOU Louisiana Fair 1932 14.0 m 12,466

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.