How many bridges in Alaska are in poor condition?

In the 2025 National Bridge Inventory, 124 of 1,659 highway bridges in Alaska were rated poor (7.5% of rated bridges).

Which Alaska counties have the most bridges in poor condition?

Among counties with at least 30 bridges, the highest shares rated poor are Nome Census Area (13.3%), Kenai Peninsula Borough (12.7%), Chugach Census Area (12.3%), Ketchikan Gateway Borough (11.2%), Southeast Fairbanks Census Area (10.9%).

Checked Oct 21, 2026

Alaska Bridge Conditions

Highway bridges longer than 20 feet in the 2025 National Bridge Inventory

Yearly inspection ratings. A poor rating does not mean a bridge is unsafe to use.

Highway bridges: 1,659
Good condition: 46.2%; 766
Poor condition: 7.5%; 124
Weight-limited or closed: 137

Bridges by county

County	Bridges	Good	Poor	Weight-limited	Avg. year built
Aleutians East Borough	16	31.3%	18.8% (3)	2	2000
Aleutians West Census Area	8	75%	0% (0)	3	2003
Anchorage Municipality	134	49.3%	0% (0)	9	1992
Bethel Census Area	13	53.8%	7.7% (1)	4	1997
Bristol Bay Borough	2	100%	0% (0)	0	1960
Chugach Census Area	65	35.4%	12.3% (8)	5	1982
Copper River Census Area	53	47.2%	5.7% (3)	5	1984
Denali Borough	27	18.5%	3.7% (1)	0	1976
Dillingham Census Area	3	33.3%	66.7% (2)	2	1992
Fairbanks North Star Borough	112	49.1%	5.4% (6)	8	1989
Haines Borough	20	45%	5% (1)	3	1994
Hoonah-Angoon Census Area	103	55.3%	4.9% (5)	5	1993
Juneau City and Borough	47	36.2%	2.1% (1)	0	1978
Kenai Peninsula Borough	102	38.2%	12.7% (13)	10	1989
Ketchikan Gateway Borough	107	46.7%	11.2% (12)	11	1995
Kodiak Island Borough	25	32%	12% (3)	1	1981
Kusilvak Census Area	1	100%	0% (0)	0	2012
Lake and Peninsula Borough	10	50%	10% (1)	3	1988
Matanuska-Susitna Borough	121	49.6%	6.6% (8)	7	1994
Nome Census Area	30	30%	13.3% (4)	5	1977
North Slope Borough	16	62.5%	6.3% (1)	0	1996
Northwest Arctic Borough	7	28.6%	14.3% (1)	0	2000
Petersburg Borough	137	46%	8% (11)	2	1991
Prince of Wales-Hyder Census Area	226	58%	7.1% (16)	3	1992
Sitka City and Borough	36	41.7%	2.8% (1)	0	1989
Skagway Municipality	6	0%	16.7% (1)	2	1985
Southeast Fairbanks Census Area	64	35.9%	10.9% (7)	2	1981
Wrangell City and Borough	58	41.4%	5.2% (3)	2	1990
Yakutat City and Borough	16	43.8%	18.8% (3)	1	1980
Yukon-Koyukuk Census Area	94	43.6%	8.5% (8)	11	1979

Frequently asked questions

How many bridges in Alaska are in poor condition?: In the 2025 National Bridge Inventory, 124 of 1,659 highway bridges in Alaska were rated poor (7.5% of rated bridges).
Which Alaska counties have the most bridges in poor condition?: Among counties with at least 30 bridges, the highest shares rated poor are Nome Census Area (13.3%), Kenai Peninsula Borough (12.7%), Chugach Census Area (12.3%), Ketchikan Gateway Borough (11.2%), Southeast Fairbanks Census Area (10.9%).

Source: Federal Highway Administration, National Bridge Inventory · 2025 data

Data sources

National Bridge InventoryFederal Highway Administration

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