Bridge Safety in Alaska
1,660 bridges — 124 Poor condition — avg age 36 years.
Bridge Inventory
| Total Bridges | 1,660 |
| Good Condition | 766 |
| Fair Condition | 770 |
| Poor Condition | 124 |
| Oldest Bridge | Built 1910 |
| Average Age | 36 years |
Condition Summary
| % Good | 46.1% |
| % Fair | 46.4% |
| % Poor | 7.5% |
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.