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 |
|---|---|---|---|---|---|
| ESKA CREEK UPPER | Alaska | Good | 2008 | 6.1 m | 60 |
| KLAWOCK SLOUGH | Alaska | Good | 2015 | 30.5 m | 60 |
| GLACIER CREEK | Alaska | Good | 2005 | 31.2 m | 60 |
| UNGAMAN CREEK | Alaska | Good | 2006 | 30.5 m | 60 |
| AIRPORT CREEK | Alaska | Good | 2019 | 30.5 m | 60 |
| HUTLINANA CREEK | Alaska | Good | 2004 | 32.3 m | 56 |
| PETERSBURG FERRY TERM | Alaska | Fair | 1986 | 152.4 m | 53 |
| AUKE BAY F.T. - EAST | Alaska | Fair | 1982 | 51.2 m | 53 |
| KETCHIKAN BERTH III | Alaska | Fair | 2003 | 43.6 m | 50 |
| PERM | Alaska | Good | 1986 | 11.2 m | 50 |
| PILGRIM RIVER | Alaska | Good | 1982 | 54.9 m | 50 |
| CREEK | Alaska | Fair | 1994 | 17.7 m | 50 |
| TENNIS SHOE CREEK | Alaska | Good | 1994 | 18.7 m | 50 |
| CREEK | Alaska | Good | 1994 | 21.9 m | 50 |
| FEATHER DUSTER CREEK | Alaska | Good | 1994 | 21.2 m | 50 |
| CREEK | Alaska | Good | 1994 | 24.4 m | 50 |
| STREAM -PERM | Alaska | Poor | 1980 | 20.1 m | 50 |
| PERM | Alaska | Good | 1990 | 39.6 m | 50 |
| PERM | Alaska | Good | 1978 | 49.1 m | 50 |
| PERM | Alaska | Good | 1986 | 23.2 m | 50 |
| LITTLE TONSINA RIVER | Alaska | Good | 2023 | 31.4 m | 50 |
| GAME CREEK TRIBUTARY | Alaska | Good | 2012 | 12.2 m | 50 |
| STREAM | Alaska | Good | 2017 | 21.3 m | 50 |
| KOUGAROK RIVER | Alaska | Poor | 1941 | 55.8 m | 50 |
| Nome Creek | Alaska | Good | 1998 | 10.8 m | 50 |
| CREEK | Alaska | Good | 1994 | 24.4 m | 50 |
| NO DATA ENTERED | Alaska | Fair | 2005 | 8.4 m | 50 |
| PERM | Alaska | Fair | 1985 | 21.9 m | 50 |
| STREAM | Alaska | Good | 1988 | 18.9 m | 50 |
| SUCKER RIVER | Alaska | Good | 2017 | 45.7 m | 50 |
| LITTLE SUSITNA RIV TRIB | Alaska | Good | 2011 | 18.9 m | 50 |
| NO DATA ENTERED | Alaska | Good | 2005 | 10.3 m | 50 |
| WILLOW CREEK | Alaska | Good | 2012 | 41.8 m | 50 |
| CREEK | Alaska | Good | 1994 | 21.3 m | 50 |
| STREAM | Alaska | Good | 1985 | 25.0 m | 50 |
| CROOKED CREEK | Alaska | Fair | 2006 | 15.2 m | 50 |
| NINILCHIK RIV BRODY LN | Alaska | Good | 2003 | 27.1 m | 50 |
| PERM | Alaska | Good | 1986 | 21.6 m | 50 |
| BIG CONTACT CREEK | Alaska | Good | 2013 | 30.8 m | 50 |
| Sourdough Creek | Alaska | Good | 2023 | 28.0 m | 50 |
| COVE CREEK 2 | Alaska | Good | 2008 | 19.8 m | 50 |
| NORTH FORK TUNUNAK RIVER | Alaska | Good | 2013 | 50.3 m | 50 |
| COTTONWOOD CREEK | Alaska | Fair | 2008 | 15.8 m | 50 |
| NO NAME CREEK | Alaska | Good | 2012 | 30.5 m | 50 |
| CREEK | Alaska | Good | 2020 | 34.1 m | 50 |
| MICHELLE DRIVE CULVERTS | Alaska | Good | 2012 | 11.0 m | 50 |
| PERM | Alaska | Good | 1991 | 11.3 m | 50 |
| CREEK | Alaska | Fair | 1994 | 24.4 m | 50 |
| STREAM | Alaska | Good | 1996 | 21.6 m | 50 |
| PILEDRIVER SLOUGH | Alaska | Good | 2003 | 8.5 m | 50 |
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.