State profile · Above median Poor share

Alaska bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Alaska, based on the FHWA National Bridge Inventory.

909
Public bridges
42.0%
Good condition
10.1%
Poor condition

Data updated May 2026

Total Bridges

909

Public highway bridges in Alaska

Good Condition

42.0%

382 bridges rated 7-9

-8.0pp vs 50% benchmark

Poor Condition

10.1%

92 bridges whose lowest applicable component is rated 0-4

3.1pp vs national avg 7.0%

Alaska vs national bridge condition

Alaska - Good condition share 42.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Alaska - Poor-condition share 33.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Alaska42.4%47.3%10.2%GoodFairPoor
Bridge inventory deck-condition mix - Alaska (FHWA NBI)

Counties (30)

Aleutians East 3 Aleutians West 1 Anchorage 35 Bethel 9 Bristol Bay 1 Chugach 18 Copper River 23 Denali 11 Dillingham 0 Fairbanks North Star 42 Haines 13 Hoonah-Angoon 115 Juneau City and 17 Kenai Peninsula 45 Ketchikan Gateway 56 Kodiak Island 8 Kusilvak 0 Lake and Peninsula 1 Matanuska-Susitna 26 Nome 18 North Slope 2 Northwest Arctic 3 Petersburg 115 Prince of Wales-Hyder 185 Sitka City and 32 Skagway 3 Southeast Fairbanks 32 Wrangell City and 55 Yakutat City and 6 Yukon-Koyukuk 34

Alaska vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Alaska on the same metric.

MO

Missouri

8.53% top marginal rate
Structure
Progressive
Burden @ $100K
$24,654

MI

Michigan

8.92% top marginal rate
Structure
Progressive
Burden @ $100K
$1,188
Selected

AK

Alaska

10.12% top marginal rate
Structure
Progressive
Burden @ $100K
$909

PA

Pennsylvania

10.50% top marginal rate
Structure
Progressive
Burden @ $100K
$14,867

ND

North Dakota

10.84% top marginal rate
Structure
Progressive
Burden @ $100K
$4,242

Bridges Needing Most Attention in Alaska

Six lowest-condition bridges in Alaska, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

SECTION LINE RD

Poor

Over: LITTLE CHENA RIVER

MILE POINT 10.2, Fairbanks North Star, AK

Built 1980 Load: 1.6 t ADT: 20

NO DATA ENTERED

Poor

Over: PALMER CREEK

PALMER CREEK ROAD, Kenai Peninsula, AK

Built 1957 Load: 2.7 t ADT: 10

IRR BIA RTE 26

Poor

Over: UNNAMED STREAM

10.7KM PAST TOTEM WAY, Prince of Wales-Hyder, AK

Built 1980 Load: 2.7 t ADT: 20

FDR 6540

Poor

Over: STREAM - HAMILTON 60R36

ETOLIN ISLAND, Wrangell City and, AK

Built 1982 Load: 2.7 t

IRR BIA RTE 8PGH

Poor

Over: UNNAMED CREEK

14.2 Mi SE of Port Graham, Kenai Peninsula, AK

Built 1997 Load: 3.6 t ADT: 5

IRR BIA RTE 461

Poor

Over: UNNAMED CREEK

5.6 MILES EAST OF HYDABUR, Prince of Wales-Hyder, AK

Built 1980 Load: 3.6 t ADT: 10

All Bridges in Alaska

LOGGING ROAD

Good

Over: STREAM

MITKOF ISLAND, Petersburg, AK

Built 1987 Load: 16.2 t ADT: 30

LOGGING ROAD

Good

Over: STREAM

MITKOF ISLAND, Petersburg, AK

Built 1987 Load: 16.2 t ADT: 30

LOGGING ROAD

Good

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 1985 Load: 16.2 t ADT: 5

LOGGING ROAD

Good

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 1984 Load: 16.2 t ADT: 5

LOGGING ROAD

Good

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 1985 Load: 16.2 t ADT: 5

LOGGING ROAD

Good

Over: UPPER KOOK CREEK NORTH

CORNER BAY, Sitka City and, AK

Built 1984 Load: 16.2 t

LOGGING ROAD

Good

Over: KOOK CREEK

CORNER BAY, Sitka City and, AK

Built 1984 Load: 16.2 t

3015200-2.40

Good

Over: STREAM

THORNE BAY, Prince of Wales-Hyder, AK

Built 1990 Load: 17.8 t ADT: 5

LOGGING ROAD

Good

Over: STREAM

SALT LAKE BAY, Hoonah-Angoon, AK

Built 1990 Load: 19.8 t

NO DATA ENTERED

Good

Over: NO DATA ENTERED

IYOUKTUG, Hoonah-Angoon, AK

Built 1990 Load: 19.8 t

ROAD

Good

Over: STREAM - 1990

EIGHT FATHOM BIGHT, Hoonah-Angoon, AK

Built 1990 Load: 19.8 t

NO DATA ENTERED

Good

Over: STREAM

FRESHWATER PAVLOV, Hoonah-Angoon, AK

Built 1983 Load: 19.8 t

LOGGING ROAD

Good

Over: STREAM

KUPREANOF ISLAND, PORTAGE, Petersburg, AK

Built 1990 Load: 19.8 t

NO DATA ENTERED

Good

Over: STREAM

MITKOF ISLAND, Petersburg, AK

Built 1990 Load: 19.8 t ADT: 10

ROAD

Good

Over: STREAM

MITKOF ISLAND, Petersburg, AK

Built 1985 Load: 19.8 t ADT: 10

ROAD

Good

Over: STREAM

MITKOF ISLAND, Petersburg, AK

Built 1990 Load: 19.8 t ADT: 10

2900000

Good

Over: MOD 29-3.947

CALDER, Prince of Wales-Hyder, AK

Built 1989 Load: 19.8 t

3030100-1.04

Good

Over: PERM

RATZ, Prince of Wales-Hyder, AK

Built 1987 Load: 19.8 t ADT: 10

2160000

Good

Over: NO DATA ENTERED

LANCASTER, Prince of Wales-Hyder, AK

Built 2006 Load: 19.8 t

LOGGING ROAD

Good

Over: NO DATA ENTERED

FRESHWATER KENNEL CREEK, Sitka City and, AK

Built 1982 Load: 19.8 t

NO DATA ENTERED

Good

Over: MOD

ZAREMBO ISLAND, Wrangell City and, AK

Built 1983 Load: 19.8 t

2120000-9.27

Good

Over: MOD

12 MILE, Prince of Wales-Hyder, AK

Built 1991 Load: 20.1 t

2058000-1.75

Good

Over: MOD

NAUKATI, Prince of Wales-Hyder, AK

Built 1990 Load: 20.1 t ADT: 20

2050300

Good

Over: PERM 2050300-3.14

STANEY, Prince of Wales-Hyder, AK

Built 1991 Load: 20.1 t ADT: 10

LOGGING ROAD

Good

Over: STREAM

EIGHT FATHOM BIGHT, Hoonah-Angoon, AK

Built 1992 Load: 20.4 t

LOGGING ROAD

Good

Over: MUD RIVER

EIGHT FATHOM BIGHT, Hoonah-Angoon, AK

Built 1992 Load: 20.4 t

NO DATA ENTERED

Good

Over: NO DATA ENTERED

FRESHWATER PAVLOV, Hoonah-Angoon, AK

Built 1991 Load: 20.4 t

IRR BIA RTE 2800

Good

Over: DAHL CREEK

12.2KM NORTHEAST OF KOBUK, Northwest Arctic, AK

Built 2010 Load: 20.4 t ADT: 5

LOGGING ROAD

Good

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 1991 Load: 20.4 t ADT: 5

IRR:NOME-TAYLOR RD

Good

Over: GRAND CENTRAL RIVER

MILE POINT 36.1, Nome, AK

Built 1982 Load: 20.9 t ADT: 249

IRR BIA RTE 1017

Good

Over: UNNAMED CREEK

0.41 MI NORTH OF BIG SALT, Prince of Wales-Hyder, AK

Built 2020 Load: 20.9 t ADT: 30

3015200-0.525

Good

Over: STREAM

THORNE BAY, Prince of Wales-Hyder, AK

Built 1980 Load: 22.4 t ADT: 5

NO DATA ENTERED

Good

Over: NO DATA ENTERED

COFFMAN, Prince of Wales-Hyder, AK

Built 2018 Load: 22.4 t ADT: 50

NO DATA ENTERED

Good

Over: NO DATA ENTERED

THORNE BAY, Prince of Wales-Hyder, AK

Built 2018 Load: 22.4 t ADT: 50

ROAD

Good

Over: TAWAH CREEK

CANNON BEACH ROAD, Yakutat City and, AK

Built 1985 Load: 22.4 t

VANDENBERG AVE

Good

Over: ALASKA RAILROAD

0.1 miles south of inters, Anchorage, AK

Built 2002 Load: 22.7 t ADT: 10,000

NO DATA ENTERED

Good

Over: PERM

SHOAL COVE, Ketchikan Gateway, AK

Built 2003 Load: 22.7 t ADT: 5

IRR BIA RTE 1008

Good

Over: KLAWOCK SLOUGH

0.21 MI W OF CRG/KLWK HW, Prince of Wales-Hyder, AK

Built 2015 Load: 22.7 t ADT: 60

SALTRY POINT ROAD

Good

Over: UNNAMED CREEK

1.2 MILES EAST ON CEDAR S, Prince of Wales-Hyder, AK

Built 1995 Load: 22.8 t ADT: 20

91 MILE LOOP

Good

Over: LITTLE TOK OVERFLOW

OLD TOK ALIGNMENT MP 0.6, Copper River, AK

Built 1954 Load: 23.3 t ADT: 30

LOGGING ROAD

Good

Over: STREAM

GAME CREEK, Hoonah-Angoon, AK

Built 1991 Load: 23.7 t

LOGGING ROAD

Good

Over: NO DATA ENTERED

KUIU ISLAND, Petersburg, AK

Built 1994 Load: 23.7 t

6590

Good

Over: NO DATA ENTERED

ZAREMBO ISLAND, Wrangell City and, AK

Built 1983 Load: 23.7 t

IRR:NOME-TAYLOR RD

Good

Over: PILGRIM RIVER

MILE POINT 60.6, Nome, AK

Built 1982 Load: 24.9 t ADT: 50

SOUTH TONGASS HWY

Good

Over: FRONT AND MILL ST VIAD

MILE POINT 2.1, Ketchikan Gateway, AK

Built 1973 Load: 25.4 t ADT: 6,830

IRR BIA RTE UNKNOW

Good

Over: IRR BIA ROUTE UNKNOWN

APPROXIMATELY 0.1 MILES (, Haines, AK

Built 1998 Load: 25.9 t ADT: 10

2140000-1.21

Good

Over: PERM

POLK, Prince of Wales-Hyder, AK

Built 1985 Load: 26.6 t

NO DATA ENTERED

Good

Over: MILK CREEK

CROW PASS ROAD, Anchorage, AK

Built 1980 Load: 26.9 t ADT: 10

AIRPORT/MINNESOTA

Good

Over: MINNESOTA DR OVERHEAD

MILE POINT 4.9, Anchorage, AK

Built 1993 Load: 27.7 t ADT: 31,600

0000

Good

Over: IRR ROUTE 1017

0.39 MI NORTH OF BIG SALT, Prince of Wales-Hyder, AK

Built 2020 Load: 28.1 t ADT: 30

Showing 451-500 of 909 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.