Bridge Safety in Alaska

1,660 bridges — 124 Poor condition — avg age 36 years.

Bridge Inventory

Total Bridges1,660
Good Condition766
Fair Condition770
Poor Condition124
Oldest BridgeBuilt 1910
Average Age36 years

Condition Summary

% Good46.1%
% Fair46.4%
% Poor7.5%

Highest-Traffic Poor Condition Bridges in Alaska

Poor condition bridges sorted by daily traffic — the most urgent safety concerns.

Bridge Condition Year Built ADT Length
WATER ST VIADUCT Poor 1955 14,046
HOADLEY CREEK Poor 1957 11,900
WARD CREEK Poor 1975 5,250
NOYES SLOUGH (MINNIE ST) Poor 1953 4,130
SOUTH FORK ANCHOR RIVER Poor 1959 3,490
SARGENT CREEK Poor 1980 2,790
KETCHIKAN CREEK Poor 1957 2,512
FUNNY RIVER Poor 1969 1,830
RUSSIAN RIVER Poor 1980 1,770
CRAB CREEK CULVERT Poor 1985 1,200
EYAK RIVER Poor 1954 1,110
SALMON RIVER Poor 1976 1,020
SKAGWAY FERRY TERMINAL Poor 1980 947
HARDAGE CREEK Poor 1971 940
NENANA RIVER AT REX Poor 1963 910
GULKANA RIVER Poor 1974 880
LOWE RIVER LWR KEYSTONE Poor 1980 810
SALT CREEK Poor 1974 600
SCOTT GLACIER NO 8 Poor 1966 520
SEWARD LAGOON Poor 1960 500

Oldest Bridges in Alaska

Bridge Condition Year Built Age ADT
MILLION DOLLAR BRIDGE Poor 1910 116 yrs 65
KUSKULANA RIVER Fair 1910 116 yrs 70
GOLD CREEK NINTH ST Fair 1934 92 yrs 953
GOLD CREEK Fair 1934 92 yrs 6,139
CALHOUN VIADUCT Fair 1934 92 yrs 2,816
LAWSON CREEK Fair 1935 91 yrs 6,160
HENEY CREEK Poor 1936 90 yrs 440
BASIN ROAD TRESTLE Good 1936 90 yrs 280
YANKEE CREEK Fair 1937 89 yrs 45
CALIFORNIA CREEK Poor 1937 89 yrs 45

Bridge Safety in Alaska

Bridge condition data for Alaska comes from the FHWA National Bridge Inventory. All publicly accessible bridges with a span over 20 feet are inspected at least every 24 months by certified bridge inspectors.