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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
ROCKY BAYOU Louisiana Fair 1997 54.9 m 20,902
ROCKY BAYOU Louisiana Fair 1997 54.9 m 20,902
US 71 ROCKY BAYOU Louisiana Fair 1999 417.6 m 20,902
FLAGON BAYOU RELIEF Louisiana Good 1984 42.7 m 20,902
US 61/RR/SWAMP/LA 626 Louisiana Fair 1992 7,824.8 m 20,850
US 61/RR/SWAMP/LA 626 Louisiana Fair 1992 7,850.1 m 20,850
CANAL NO. 4 Louisiana Good 1995 8.8 m 20,800
DRAIN CANAL NO. 4 Louisiana Good 1995 11.6 m 20,800
CANAL NO. 4 Louisiana Good 1995 8.8 m 20,800
NORTH BRANCH WARD CREEK Louisiana Good 1967 24.7 m 20,794
BEAVER CREEK Louisiana Good 2014 73.8 m 20,690
CANAL NUMBER 5 Louisiana Good 1960 11.9 m 20,625
BAYOU CALAHAN Louisiana Fair 1931 6.7 m 20,603
US 167 Louisiana Good 1985 93.9 m 20,572
BAYOU CLEAR Louisiana Fair 1990 73.2 m 20,572
LA 3265 Louisiana Good 1990 64.6 m 20,572
DRAINAGE CANAL Louisiana Good 1985 42.7 m 20,572
BAYOU BOEUF Louisiana Fair 1990 137.2 m 20,572
BAYOU BOEUF Louisiana Good 1991 76.2 m 20,572
LA 181 Louisiana Good 1985 94.2 m 20,572
DRAINAGE CANAL Louisiana Good 1985 48.8 m 20,572
DIVERSION CANAL Louisiana Good 1989 54.9 m 20,572
UP RAILROAD Louisiana Good 1994 566.9 m 20,561
HORSESHOE CANAL Louisiana Fair 1995 42.7 m 20,561
UP RR Louisiana Good 1992 169.5 m 20,561
GROUND Louisiana Good 1994 75.3 m 20,561
HYNSON BAYOU Louisiana Good 1990 30.5 m 20,561
US 71 RAMPS UP RR Louisiana Good 1992 541.3 m 20,561
US 167 BUSINESS Louisiana Good 1995 64.0 m 20,561
RAPIDES STATION RD. Louisiana Good 1991 65.2 m 20,561
COTTON BAYOU Louisiana Good 1991 79.2 m 20,561
UP RR Louisiana Good 1991 442.9 m 20,561
INDUSTRIAL PARK RD &UPRR Louisiana Good 1992 167.6 m 20,561
HILL BAYOU Louisiana Good 1995 42.7 m 20,561
LA 498 Louisiana Good 1992 64.6 m 20,561
ATCHAFALAYA FLOODWAY Louisiana Good 1991 39.3 m 20,508
BAYOU TOULOUSE Louisiana Good 1951 12.5 m 20,498
CANAL NO 2 Louisiana Good 2012 9.1 m 20,464
I-20 Louisiana Fair 1965 101.5 m 20,451
I-59 Louisiana Fair 1966 80.8 m 20,400
US 61 Louisiana Fair 1968 64.6 m 20,370
INTRACOASTAL WATERWAY Louisiana Good 1996 996.7 m 20,358
DRAIN Louisiana Good 1970 9.1 m 20,352
CANAL #5 Louisiana Good 1955 13.1 m 20,352
DRAINAGE Louisiana Good 1970 18.6 m 20,256
CONTRABAND BAYOU Louisiana Fair 1961 220.1 m 20,242
AIRPORT DITCH Louisiana Fair 1972 30.5 m 20,178
AIRPORT DITCH Louisiana Fair 1972 30.5 m 20,178
POYDRAS BAYOU Louisiana Fair 1952 13.1 m 20,176
SERE BAYOU Louisiana Good 2006 36.6 m 20,176

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.