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 |
|---|---|---|---|---|---|
| OFF RAMP US 51 MANCHAC | Louisiana | Good | 1979 | 170.7 m | 8,115 |
| ON RAMP SOUTH US 51 | Louisiana | Good | 1979 | 170.7 m | 8,115 |
| ON RAMP NORTH US 51 | Louisiana | Good | 1979 | 170.7 m | 8,115 |
| OFF RAMP US 51 MANCHAC | Louisiana | Good | 1979 | 170.7 m | 8,115 |
| SWIFT BAYOU CANAL | Louisiana | Good | 2013 | 10.1 m | 8,115 |
| I-55 NORTH ON RAMP RUDDC | Louisiana | Good | 1975 | 201.2 m | 8,115 |
| MUNDY BAYOU | Louisiana | Fair | 1985 | 61.0 m | 8,115 |
| I 55 SOUTH ON RAMP RUDDC | Louisiana | Fair | 1975 | 179.8 m | 8,115 |
| KELLY BAYOU | Louisiana | Good | 2014 | 67.1 m | 8,115 |
| TRINITY BAYOU | Louisiana | Good | 2013 | 9.8 m | 8,115 |
| MUNDY BAYOU | Louisiana | Fair | 1986 | 61.0 m | 8,115 |
| CREEK | Louisiana | Fair | 1971 | 6.7 m | 8,115 |
| I0010 | Louisiana | Fair | 1975 | 181.1 m | 8,115 |
| ON RP FR S US61 TO E I10 | Louisiana | Fair | 1975 | 158.2 m | 8,115 |
| TRINITY BAYOU | Louisiana | Good | 2013 | 7.0 m | 8,115 |
| LAFOURCHE BAYOU | Louisiana | Fair | 1966 | 57.6 m | 8,110 |
| CHENIERE CREEK | Louisiana | Fair | 1955 | 75.9 m | 8,105 |
| CREEK | Louisiana | Fair | 1955 | 58.5 m | 8,105 |
| CREEK | Louisiana | Fair | 1955 | 11.9 m | 8,105 |
| STEEP BAYOU | Louisiana | Poor | 1955 | 23.8 m | 8,105 |
| BAYOU LAFOURCHE | Louisiana | Fair | 1977 | 61.6 m | 8,101 |
| BAYOU BRAUD | Louisiana | Good | 1968 | 30.5 m | 8,090 |
| HONEY CUT BAYOU | Louisiana | Good | 2006 | 18.3 m | 8,088 |
| LA 318 | Louisiana | Good | 2017 | 575.2 m | 8,073 |
| DRAIN | Louisiana | Fair | 1973 | 8.5 m | 8,073 |
| VACHERIE CANAL | Louisiana | Fair | 1978 | 18.3 m | 8,073 |
| AMITE DIVERSION CANAL | Louisiana | Fair | 1960 | 146.9 m | 8,068 |
| PIERRES DRAINAGE | Louisiana | Good | 1960 | 24.4 m | 8,068 |
| I-20 | Louisiana | Fair | 1975 | 104.2 m | 8,046 |
| WALNUT BAYOU | Louisiana | Fair | 1963 | 68.9 m | 8,046 |
| COMMERCIAL CANAL | Louisiana | Fair | 1991 | 12.2 m | 8,040 |
| HOLLYWOOD CANAL | Louisiana | Fair | 1988 | 67.1 m | 8,036 |
| BLACK BAYOU | Louisiana | Fair | 1965 | 48.8 m | 8,030 |
| BARNES CREEK | Louisiana | Good | 2007 | 61.0 m | 8,021 |
| CREEK | Louisiana | Fair | 2007 | 30.5 m | 8,021 |
| PALMETTO CREEK | Louisiana | Fair | 2007 | 79.2 m | 8,021 |
| CREEK | Louisiana | Fair | 1951 | 29.0 m | 8,018 |
| CREEK | Louisiana | Fair | 1960 | 8.2 m | 8,018 |
| CREEK | Louisiana | Good | 2011 | 182.9 m | 8,018 |
| CREEK | Louisiana | Fair | 1960 | 10.1 m | 8,018 |
| SUGAR CREEK | Louisiana | Fair | 1951 | 23.2 m | 8,018 |
| CYPRESS CREEK REL. | Louisiana | Fair | 1951 | 29.0 m | 8,018 |
| CREEK | Louisiana | Fair | 1960 | 7.9 m | 8,018 |
| Schneider Canal | Louisiana | Good | 2017 | 10.4 m | 8,018 |
| CREEK | Louisiana | Fair | 1960 | 10.1 m | 8,018 |
| CYPRESS BAYOU REL. | Louisiana | Fair | 1951 | 23.2 m | 8,018 |
| BELLE RIVER | Louisiana | Good | 2009 | 146.3 m | 8,005 |
| BAYOU FATMA | Louisiana | Poor | 1980 | 40.5 m | 8,000 |
| BAYOU FATMA | Louisiana | Fair | 1988 | 40.5 m | 8,000 |
| CHINCHUB BAYOU | Louisiana | Good | 1954 | 38.4 m | 8,000 |
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.