Browse Bridge Database
1,660 bridges in the FHWA National Bridge Inventory in Alaska.
National Bridge Inventory Database
Browse 1,660 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 |
|---|---|---|---|---|---|
| SECOND SALMON RUN W FORK | Alaska | Good | 2016 | 9.4 m | 50 |
| SECOND SALMON RUN E FORK | Alaska | Good | 2016 | 9.4 m | 50 |
| LIVENGOOD CREEK | Alaska | Good | 1994 | 8.1 m | 48 |
| TUNUNAK RIVER | Alaska | Fair | 1978 | 19.8 m | 46 |
| BOULDER CREEK | Alaska | Good | 2016 | 32.0 m | 46 |
| HOONAH FERRY TERMINAL | Alaska | Good | 2011 | 40.5 m | 45 |
| AUKE BAY - STERN BERTH | Alaska | Fair | 2004 | 70.4 m | 45 |
| TATALINA RIVER | Alaska | Fair | 1947 | 18.6 m | 45 |
| TAKOTNA RIVER | Alaska | Poor | 1941 | 77.7 m | 45 |
| YANKEE CREEK | Alaska | Fair | 1937 | 13.6 m | 45 |
| CALIFORNIA CREEK | Alaska | Poor | 1937 | 13.6 m | 45 |
| GANES CREEK | Alaska | Fair | 1937 | 36.6 m | 45 |
| SPRUCE CREEK | Alaska | Poor | 1964 | 8.8 m | 45 |
| AUKE BAY F.T. - WEST | Alaska | Fair | 1989 | 51.2 m | 45 |
| SITKA FERRY TERMINAL | Alaska | Fair | 1988 | 51.2 m | 45 |
| INDEPENDENCE CREEK | Alaska | Fair | 1969 | 12.5 m | 45 |
| INDIAN CREEK | Alaska | Poor | 1985 | 21.3 m | 45 |
| CHIGNIK CREEK | Alaska | Fair | 2002 | 15.2 m | 45 |
| UNNAMED CREEK | Alaska | Fair | 1982 | 21.3 m | 45 |
| HAINES FERRY TERMINAL | Alaska | Fair | 1984 | 51.2 m | 43 |
| PACKERS CREEK | Alaska | Fair | 1986 | 17.1 m | 41 |
| BAKER CREEK | Alaska | Good | 1998 | 37.0 m | 40 |
| COPPER RIV (FLAG PT WST) | Alaska | Fair | 1973 | 239.4 m | 40 |
| COPPER RIV (RND ISLAND) | Alaska | Good | 1973 | 239.4 m | 40 |
| COPPER DELTA | Alaska | Fair | 1977 | 73.5 m | 40 |
| COPPER DELTA | Alaska | Fair | 1977 | 366.1 m | 40 |
| COPPER DELTA | Alaska | Fair | 1977 | 73.5 m | 40 |
| ALAGANIK SLOUGH | Alaska | Fair | 1987 | 48.8 m | 40 |
| CHICKALOON RIVER NO. 1 | Alaska | Fair | 1982 | 38.7 m | 40 |
| CHICKALOON RIVER NO. 2 | Alaska | Good | 1982 | 38.7 m | 40 |
| ROCK CREEK | Alaska | Good | 2021 | 37.8 m | 40 |
| SITUK RIVER | Alaska | Fair | 1966 | 31.5 m | 40 |
| COPPER RIVER (FLAG PT E) | Alaska | Fair | 1973 | 373.5 m | 40 |
| ANTLEN RIVER | Alaska | Good | 1974 | 33.3 m | 40 |
| AHRNKLIN RIVER | Alaska | Fair | 1974 | 48.8 m | 40 |
| DANGEROUS RIVER | Alaska | Poor | 1976 | 131.0 m | 40 |
| JENNY CREEK | Alaska | Good | 2009 | 11.9 m | 40 |
| SLO DUC CREEK | Alaska | Fair | 2008 | 25.6 m | 40 |
| WISEMAN BRIDGE | Alaska | Fair | 1995 | 25.3 m | 40 |
| SAYLES/GORGE VIADUCT | Alaska | Poor | 1960 | 38.7 m | 40 |
| SALMON CREEK CULVERTS | Alaska | Fair | 1987 | 7.0 m | 40 |
| SOCKEYE CREEK | Alaska | Fair | 1976 | 16.7 m | 40 |
| MILLER CREEK WEST | Alaska | Good | 1976 | 8.8 m | 40 |
| MILLER CREEK EAST | Alaska | Good | 1976 | 8.8 m | 40 |
| OLD SITUK RIVER | Alaska | Fair | 1976 | 18.0 m | 40 |
| KAKE FERRY TERMINAL | Alaska | Good | 2015 | 40.2 m | 37 |
| TENT CREEK | Alaska | Fair | 1993 | 20.5 m | 35 |
| ANGOON FERRY TERMINAL | Alaska | Fair | 2011 | 41.8 m | 31 |
| STREAM | Alaska | Good | 1987 | 17.7 m | 30 |
| KELTY FIELD | Alaska | Good | 1999 | 7.7 m | 30 |
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.