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 |
|---|---|---|---|---|---|
| PORT DELUCE CREEK | Louisiana | Good | 1996 | 189.0 m | 4,317 |
| DUGDEMONA RIVER RELIEF | Louisiana | Good | 1996 | 48.8 m | 4,317 |
| BAYOU KING GEORGE | Louisiana | Fair | 1960 | 36.6 m | 4,313 |
| AMITE RIVER REL | Louisiana | Fair | 1960 | 24.4 m | 4,313 |
| AMITE RIVER-FRENCH SMEN | Louisiana | Fair | 1960 | 283.8 m | 4,313 |
| AMITE RIVER RELIEF | Louisiana | Fair | 1960 | 24.4 m | 4,313 |
| SIPHORIEN BAYOU | Louisiana | Fair | 1950 | 8.2 m | 4,308 |
| DRAIN | Louisiana | Fair | 1950 | 8.2 m | 4,308 |
| I-49 | Louisiana | Good | 1985 | 112.8 m | 4,308 |
| LITTLE BAYOU NA BONCHASS | Louisiana | Poor | 1957 | 61.0 m | 4,306 |
| Cheniere Spillway | Louisiana | Good | 2024 | 45.7 m | 4,300 |
| DRAIN | Louisiana | Fair | 1976 | 17.7 m | 4,299 |
| COFFMAN CREEK | Louisiana | Fair | 1976 | 17.7 m | 4,299 |
| DUTCHMAN CREEK | Louisiana | Fair | 1976 | 29.3 m | 4,299 |
| CREEK | Louisiana | Good | 2003 | 30.5 m | 4,294 |
| GILMER BAYOU | Louisiana | Good | 1986 | 91.4 m | 4,294 |
| BOGGY BAYOU | Louisiana | Poor | 1969 | 52.1 m | 4,294 |
| BOGGY BAYOU | Louisiana | Fair | 1969 | 57.9 m | 4,294 |
| BUCHANAN BAYOU | Louisiana | Fair | 1969 | 17.4 m | 4,294 |
| CREEK | Louisiana | Fair | 1969 | 11.6 m | 4,294 |
| GRAND CAILLOU BAYOU | Louisiana | Poor | 1980 | 11.6 m | 4,278 |
| TICKFAW RIVER | Louisiana | Good | 2011 | 97.5 m | 4,270 |
| I-12 | Louisiana | Good | 1968 | 67.7 m | 4,270 |
| CAT BRANCH | Louisiana | Good | 1998 | 23.2 m | 4,270 |
| BIG BRANCH | Louisiana | Good | 1999 | 13.1 m | 4,270 |
| CREEK | Louisiana | Good | 2004 | 12.5 m | 4,270 |
| CREEK | Louisiana | Good | 2004 | 12.5 m | 4,270 |
| BAYOU CASTOR | Louisiana | Good | 2006 | 67.1 m | 4,268 |
| LITTLE PRAIRIE CREEK | Louisiana | Good | 2006 | 30.5 m | 4,268 |
| BAYOU BOURBEAU | Louisiana | Fair | 1959 | 54.9 m | 4,266 |
| DRAIN | Louisiana | Fair | 1934 | 8.2 m | 4,262 |
| Dawson Cr | Louisiana | Good | 2021 | 36.6 m | 4,262 |
| BAYOU | Louisiana | Fair | 2022 | 30.5 m | 4,262 |
| DRAIN | Louisiana | Fair | 1934 | 7.9 m | 4,262 |
| B.N. & S.F. R/R CREEK | Louisiana | Fair | 2002 | 241.1 m | 4,262 |
| Sharp Station Canal | Louisiana | Fair | 1970 | 9.8 m | 4,262 |
| CHENE BAYOU | Louisiana | Fair | 1985 | 54.9 m | 4,262 |
| EAST LACASSINE BAYOU | Louisiana | Fair | 1985 | 30.5 m | 4,262 |
| EAST LACASSINE BAYOU | Louisiana | Good | 1992 | 48.8 m | 4,262 |
| BAYOU PETIT CAILLOU | Louisiana | Good | 2016 | 48.8 m | 4,256 |
| DRAIN | Louisiana | Poor | 1964 | 7.9 m | 4,254 |
| DRAIN | Louisiana | Fair | 1932 | 21.0 m | 4,253 |
| TECHE BAYOU | Louisiana | Fair | 1974 | 64.0 m | 4,252 |
| BAYOU | Louisiana | Fair | 1951 | 8.2 m | 4,251 |
| B.GRAND CANE RLF | Louisiana | Fair | 1951 | 36.6 m | 4,251 |
| BAYOU GRAND CANE | Louisiana | Fair | 1951 | 61.0 m | 4,251 |
| DRAIN | Louisiana | Fair | 1951 | 24.4 m | 4,251 |
| COULEE | Louisiana | Good | 2004 | 45.7 m | 4,250 |
| CASTOR BAYOU | Louisiana | Fair | 1990 | 8.8 m | 4,249 |
| BAYOU ESTES | Louisiana | Good | 1990 | 8.8 m | 4,249 |
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.