Did you know? The oldest bridge in the NBI was built in 1697.
Did you know? The oldest bridge in the NBI was built in 1697.
Total Bridges
1,660
Poor Condition
7.5%
Avg Sufficiency
66.2
Avg Age
37 yrs
Interactive map of bridges in Alaska. Color indicates condition: green (good), yellow (fair), red (poor). Click a dot for details.
Total Bridges
1,660
Poor Condition
124(7.5%)
Good or Better
1,137
Avg Sufficiency
66.2
Average Age
37 yrs
Daily Crossings
2.8M
Click a column header to sort. Click a county name to view its bridges.
The 10 bridges with the lowest sufficiency ratings in Alaska.
over UNNAMED STREAM
over UNNAMED STREAM
over UNNAMED CREEK
over UNNAMED CREEK
over LITTLE CHENA RIVER
over WINDY CREEK RIGHT
over WILLOW CREEK
over UNNAMED CREEK
over VERY SMALL SLOUGH
over UNNAMED CREED
The 10 bridges with the highest average daily traffic in Alaska.
over SHIP CREEK
over DOWLING RD UNDERXING
over DIMOND BLVD UNDERXING
over 76TH AVE UNDERCROSSING
over SEWARD MERIDIAN U.C.
over MINNESOTA DR OVERHEAD
over AIRPORT SPUR OVERHEAD
over MINN. DR./RASP. RD. I.C.
over OMALLEY UNDERCROSSING
over TUDOR ROAD OVERCROSSING
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