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 |
|---|---|---|---|---|---|
| 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.