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 |
|---|---|---|---|---|---|
| SOUTH CHANNEL UNALASKA | Alaska | Good | 2008 | 213.4 m | 3,450 |
| WHIPPLE CREEK | Alaska | Fair | 1968 | 46.9 m | 3,440 |
| SUMMIT CREEK | Alaska | Good | 1983 | 6.8 m | 3,430 |
| QUARTZ CREEK | Alaska | Good | 1983 | 8.5 m | 3,430 |
| NOYES SLOUGH SW RAMP | Alaska | Good | 1991 | 22.4 m | 3,420 |
| DEEP CREEK | Alaska | Fair | 1965 | 41.2 m | 3,380 |
| SPRING CREEK NB | Alaska | Good | 2004 | 249.9 m | 3,272 |
| GLENN PARKS OVERHEAD NB | Alaska | Fair | 2004 | 27.7 m | 3,272 |
| WILLOW CREEK | Alaska | Good | 2004 | 67.0 m | 3,230 |
| EAST FORK MOOSE RIVER | Alaska | Good | 2018 | 42.7 m | 3,180 |
| STERLING WILDLIFE UP 2 | Alaska | Good | 2018 | 19.5 m | 3,180 |
| MCCARREY OC | Alaska | Fair | 1986 | 81.1 m | 3,160 |
| SHIP CREEK (POST ROAD) | Alaska | Fair | 1972 | 16.2 m | 3,160 |
| COOPER CREEK | Alaska | Fair | 1955 | 20.6 m | 3,150 |
| LITTLE WILLOW CREEK | Alaska | Fair | 1962 | 42.2 m | 3,000 |
| KENAI RIVER (SCHOONERS) | Alaska | Fair | 1954 | 85.9 m | 2,900 |
| QUARTZ CREEK | Alaska | Fair | 1965 | 49.6 m | 2,900 |
| KETCHIKAN CR PARK-LOWER | Alaska | Fair | 1967 | 19.8 m | 2,893 |
| SPRING CREEK SB | Alaska | Good | 2004 | 212.3 m | 2,857 |
| GLENN PARKS OVERHEAD SB | Alaska | Fair | 2004 | 27.7 m | 2,857 |
| KENAI RIVER (COOPER LND) | Alaska | Fair | 1965 | 122.5 m | 2,830 |
| CALHOUN VIADUCT | Alaska | Fair | 1934 | 89.9 m | 2,816 |
| SARGENT CREEK | Alaska | Poor | 1980 | 23.3 m | 2,790 |
| NOYES SLOUGH NW RAMP | Alaska | Good | 1991 | 30.1 m | 2,790 |
| MONTANA CREEK | Alaska | Good | 2023 | 75.0 m | 2,780 |
| MONTANA CREEK | Alaska | Good | 1985 | 24.7 m | 2,770 |
| LAKE CREEK | Alaska | Fair | 1968 | 12.2 m | 2,770 |
| GLACIER CREEK | Alaska | Fair | 1967 | 67.7 m | 2,760 |
| MOOSE CREEK | Alaska | Fair | 1958 | 55.8 m | 2,760 |
| ESKA CREEK | Alaska | Good | 1999 | 32.4 m | 2,760 |
| ILIULIUK RIVER | Alaska | Fair | 1983 | 30.5 m | 2,750 |
| GRANITE CREEK | Alaska | Fair | 2014 | 31.4 m | 2,700 |
| HORNET CREEK | Alaska | Fair | 1971 | 27.9 m | 2,670 |
| KINGFISHER CREEK | Alaska | Fair | 1971 | 33.7 m | 2,670 |
| ICEWORM GULCH | Alaska | Fair | 1971 | 24.8 m | 2,670 |
| PETERSBURG S MITKOF TERM | Alaska | Good | 2006 | 317.6 m | 2,659 |
| GOOSE CREEK | Alaska | Good | 2023 | 45.7 m | 2,650 |
| SHEEP CREEK | Alaska | Good | 2023 | 71.3 m | 2,650 |
| MONTANA OVERHEAD | Alaska | Good | 2016 | 44.2 m | 2,650 |
| KASHWITNA RIVER | Alaska | Fair | 1962 | 66.0 m | 2,640 |
| KINCAID PARK UPPER PUC | Alaska | Good | 2006 | 7.2 m | 2,613 |
| KINCAID PARK LOWER PUC | Alaska | Good | 2001 | 7.2 m | 2,613 |
| KINCAID PARK LEKISCH PUC | Alaska | Good | 2001 | 7.7 m | 2,613 |
| SHIP CREEK | Alaska | Fair | 1980 | 66.1 m | 2,560 |
| KETCHIKAN CREEK | Alaska | Poor | 1957 | 20.4 m | 2,512 |
| GIRDWOOD OVERHEAD | Alaska | Fair | 1967 | 36.9 m | 2,510 |
| EIELSON ACCESS UC | Alaska | Good | 2006 | 36.6 m | 2,500 |
| MOOSE CREEK WEST BOUND | Alaska | Fair | 1971 | 26.5 m | 2,500 |
| MOOSE CREEK EAST BOUND | Alaska | Fair | 1971 | 26.8 m | 2,500 |
| KETCHIKAN CREEK FAIR ST | Alaska | Fair | 1967 | 28.0 m | 2,480 |
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.