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.

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BridgeLocationConditionYear BuiltLengthADT
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.