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

NABESNA ROAD

Fair

Over: JACK CREEK

MILE POINT 35.2, Copper River, AK

Built 1969 Load: 50.0 t ADT: 80

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

TONKA, Petersburg, AK

Built 2006 Load: 50.5 t ADT: 5

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

TONKA, Petersburg, AK

Built 2004 Load: 50.9 t ADT: 5

ALASKA HIGHWAY

Fair

Over: LITTLE GERSTLE RIVER

MILE POINT 164.1, Southeast Fairbanks, AK

Built 1999 Load: 51.3 t ADT: 180

43500

Fair

Over: LOG

TONKA, Petersburg, AK

Built 2002 Load: 52.2 t ADT: 5

FDR 6270

Fair

Over: STREAM

WRANGELL ISLAND, Wrangell City and, AK

Built 1982 Load: 52.5 t ADT: 10

FDR 6299

Fair

Over: STREAM - PERM

WRANGELL ISLAND, Wrangell City and, AK

Built 1982 Load: 52.5 t ADT: 10

FDR 6590

Fair

Over: STREAM - PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 1985 Load: 53.5 t ADT: 5

FDR6585

Fair

Over: STREAM - LOG

ZAREMBO ISLAND, Wrangell City and, AK

Built 1986 Load: 54.8 t

FDR 6590

Fair

Over: STREAM - PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 1983 Load: 54.8 t ADT: 5

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

TONKA, Petersburg, AK

Built 2006 Load: 55.4 t ADT: 5

EDGERTON/MCCARTHY

Fair

Over: KUSKULANA RIVER

MILE POINT 50.6, Copper River, AK

Built 1910 Load: 55.9 t ADT: 70

LOGGING ROAD

Fair

Over: STREAM

MITKOF ISLAND, Petersburg, AK

Built 1980 Load: 56.1 t ADT: 50

3000000-23.95

Fair

Over: PERM

THORNE BAY, Prince of Wales-Hyder, AK

Built 1985 Load: 56.4 t ADT: 50

IRR:MARINE HWY RTE

Fair

Over: CHENEGA RAMP

CHENEGA BAY, Chugach, AK

Built 1995 Load: 57.5 t ADT: 10

1500000-35.667

Fair

Over: PERM

EL CAP, Prince of Wales-Hyder, AK

Built 1982 Load: 58.6 t ADT: 10

ROAD

Fair

Over: STREAM

TONKA, Petersburg, AK

Built 2004 Load: 59.9 t ADT: 5

LOGGING ROAD

Fair

Over: STREAM

TONKA, Petersburg, AK

Built 1976 Load: 60.6 t ADT: 5

8400600-0.59

Fair

Over: MOD

UPPER CARROLL, Ketchikan Gateway, AK

Built 2007 Load: 60.9 t ADT: 2

LOGGING ROAD

Fair

Over: BEAVER POND OUTLET

CORNER BAY, Sitka City and, AK

Built 2004 Load: 64.5 t

SHERIDAN GLCR ROAD

Fair

Over: SHERIDAN CREEK

NO DATA ENTERED, Chugach, AK

Built 2006 Load: 65.1 t ADT: 10

HALIBUT POINT ROAD

Fair

Over: CASCADE CREEK

MILE POINT 2.0, Sitka City and, AK

Built 1937 Load: 65.3 t ADT: 4,790

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

KUPREANOF ISLAND, PORTAGE, Petersburg, AK

Built 2006 Load: 66.1 t

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

SUEMEZ, Prince of Wales-Hyder, AK

Built 2008 Load: 68.4 t

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

ZAREMBO ISLAND, Wrangell City and, AK

Built 2016 Load: 69.0 t ADT: 5

MARGARET

Fair

Over: NO DATA ENTERED

MARGARET, Ketchikan Gateway, AK

Built 2010 Load: 70.0 t

ROAD

Fair

Over: STREAM

TONKA, Petersburg, AK

Built 2004 Load: 71.6 t ADT: 5

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

THOMAS BAY, Petersburg, AK

Built 2006 Load: 74.2 t

IRR BIA ROUTE 008

Fair

Over: UNNAMED STREAM

S OF KLAWOCK LAKE, 3.9 MI, Prince of Wales-Hyder, AK

Built 1990 Load: 89.8 t ADT: 1

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

TONKA, Petersburg, AK

Built 2004 Load: 92.7 t ADT: 5

8400600-0.70

Fair

Over: MOD

UPPER CARROLL, Ketchikan Gateway, AK

Built 2007 Load: 97.2 t ADT: 2

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

KOSCIUSKO, Prince of Wales-Hyder, AK

Built 2007 Load: 97.2 t

2052000

Fair

Over: NO DATA ENTERED

STANEY, Prince of Wales-Hyder, AK

Built 2006 Load: 97.2 t ADT: 10

CHIPPEWA AVE

Fair

Over: CLEAR CREEK

0.5 KM W OF BADGER RD, Fairbanks North Star, AK

Built 2000 Load: 99.9 t ADT: 25

IRR BIA RTE 461

Fair

Over: UNNAMED CREEK

12.05 MILES EAST OF HYDAB, Prince of Wales-Hyder, AK

Built 1982 Load: 99.9 t ADT: 45

8552

Good

Over: STREAM

EXCURSION INLET, Haines, AK

Built 2017

ROAD

Good

Over: STREAM

FRESHWATER, Hoonah-Angoon, AK

Built 1997

IRR BIA RTE 6014

Good

Over: VERY SMALL SLOUGH

0.1KM WEST OF WASHETERIA, Bethel, AK

Built 2014 Load: 1.6 t ADT: 200

IRR BIA RTE 6068

Good

Over: SWAMPY SLOUGH

IN FRONT OF SCHOOL, Bethel, AK

Built 2014 Load: 1.6 t ADT: 400

IRR BIA RTE 6023

Good

Over: UNNAMED TIDAL SLOUGH

0.2KM EAST OF BARGE LNDG, Bethel, AK

Built 2005 Load: 4.5 t ADT: 200

IRR BIA RTE 6040

Good

Over: UNNAMED TIDAL SLOUGH

0.3KM WEST OF SCHOOL, Bethel, AK

Built 2005 Load: 4.5 t ADT: 200

IRR BIA RTE 6076

Good

Over: TIDAL SLOUGH

SOUTH OF TRIBAL COUNCIL, Bethel, AK

Built 2005 Load: 4.5 t ADT: 100

ROAD

Good

Over: TRIB TO NEKA RIVER

EIGHT FATHOM BIGHT, Hoonah-Angoon, AK

Built 1986 Load: 13.6 t

ROAD

Good

Over: NEKA RIVER

EIGHT FATHOM BIGHT, Hoonah-Angoon, AK

Built 1986 Load: 13.6 t

ROAD

Good

Over: NEKA RIVER

EIGHT FATHOM BIGHT, Hoonah-Angoon, AK

Built 1986 Load: 13.6 t

LOGGING ROAD

Good

Over: STREAM

GAME CREEK, Hoonah-Angoon, AK

Built 1985 Load: 13.9 t ADT: 50

LOGGING ROAD

Good

Over: CREEK

FRESHWATER, Hoonah-Angoon, AK

Built 1985 Load: 13.9 t ADT: 10

MANCHU TRAIL

Good

Over: FRENCH CREEK

APPROXIMATELY 350' FROM I, Fairbanks North Star, AK

Built 1960 Load: 15.4 t ADT: 1

LOGGING ROAD

Good

Over: HOMESHORE CREEK

HOMESHORE, Haines, AK

Built 1985 Load: 16.2 t

LOGGING ROAD

Good

Over: LOWER SWANSON CREEK

HOMESHORE, Haines, AK

Built 1988 Load: 16.2 t

Showing 401-450 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.