State profile · Above national median SD

Alaska bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Alaska — drawn straight from the FHWA National Bridge Inventory.

909
Public bridges
42.0%
Good condition
10.1%
Poor condition
10.1%
Structurally deficient

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 rated 0-4

Structurally Deficient

10.1%

92 bridges flagged for repair priority

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 — Structurally deficient share 33.7%
National avg

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

Condition Distribution

Bridge inventory deck-condition mix — Alaska (FHWA NBI)

Alaska42.02420242024203%46.864686468646866%10.121012101210122%10.121012101210122%GoodFairPoorStructurally Deficient
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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Alaska on the same metric.

29

Missouri

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

26

Michigan

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

02

Alaska

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

42

Pennsylvania

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

38

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 composite NBI rating. Each is inspected at least every 24 months.

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

Structurally Deficient

Over: PALMER CREEK

PALMER CREEK ROAD, Kenai Peninsula, AK

Built 1957 Load: 2.7 t ADT: 10

IRR BIA RTE 26

Structurally Deficient

Over: UNNAMED STREAM

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

Built 1980 Load: 2.7 t ADT: 20

FDR 6540

Structurally Deficient

Over: STREAM - HAMILTON 60R36

ETOLIN ISLAND, Wrangell City and, AK

Built 1982 Load: 2.7 t

IRR BIA RTE 8PGH

Structurally Deficient

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

Structurally Deficient

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

IRR BIA RTE 461

Fair

Over: UNNAMED CREEK

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

Built 1982 Load: 31.7 t ADT: 10

IRR BIA RTE 461

Fair

Over: UNNAMED CREEK

10.0 MILES EAST OF HYDABU, Prince of Wales-Hyder, AK

Built 1982 Load: 31.7 t ADT: 10

IRR BIA RTE 461

Fair

Over: UNNAMED CREEK

19.3 MILES EAST OF HYDABU, Prince of Wales-Hyder, AK

Built 1997 Load: 31.7 t ADT: 10

DIMOND BLVD

Fair

Over: CAMPBELL CREEK, DIMOND

MILE POINT 2.4, Anchorage, AK

Built 1988 Load: 31.8 t ADT: 22,100

EDGERTON/MCCARTHY

Fair

Over: COPPER RIVER (CHITINA)

MILE POINT 34.7, Copper River, AK

Built 1971 Load: 31.8 t ADT: 180

SOUTH TONGASS HWY

Fair

Over: KETCHIKAN CREEK

MILE POINT 2.4, Ketchikan Gateway, AK

Built 1944 Load: 31.8 t ADT: 6,850

LOGGING ROAD

Fair

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 1993 Load: 31.8 t

LOGGING ROAD

Fair

Over: NO DATA ENTERED

KUIU ISLAND, Petersburg, AK

Built 1993 Load: 31.8 t

STEESE HIGHWAY

Fair

Over: NORTH FORK 12 MILE CREEK

MILE POINT 80.1, Yukon-Koyukuk, AK

Built 1961 Load: 31.8 t ADT: 100

FERRY TERMINAL RD

Fair

Over: CORDOVA FERRY TERMINAL

CORDOVA, Chugach, AK

Built 2004 Load: 32.0 t ADT: 100

PARKS HIGHWAY

Fair

Over: BEAR CREEK

MILE POINT 233.8, Denali, AK

Built 1965 Load: 32.0 t ADT: 910

BACK ACRES ROAD

Fair

Over: BODENBURG CREEK

MILE POINT 0.1, Matanuska-Susitna, AK

Built 2002 Load: 32.0 t ADT: 30

COPPER RIVER HWY

Fair

Over: COPPER DELTA

MILE POINT 34.6, Chugach, AK

Built 1977 Load: 32.1 t ADT: 40

COPPER RIVER HWY

Fair

Over: COPPER DELTA

MILE POINT 37.0, Chugach, AK

Built 1977 Load: 32.1 t ADT: 94

NO DATA ENTERED

Fair

Over: PERM

UPPER CARROLL, Ketchikan Gateway, AK

Built 2002 Load: 32.4 t ADT: 2

IRR BIA RTE 22

Fair

Over: SMALL POINT CREEK

1.8 KM N.W. OF TOTEM WAY, Prince of Wales-Hyder, AK

Built 1980 Load: 32.4 t ADT: 15

IRR BIA RTE 22

Fair

Over: UNNAMED STREAM

2.6KM PAST TOTEM WAY, Prince of Wales-Hyder, AK

Built 1980 Load: 32.4 t ADT: 20

IRR BIA RTE 24

Fair

Over: UNNAMED STREAM

12.3KM FROM TOTEM WAY, Prince of Wales-Hyder, AK

Built 1980 Load: 32.4 t ADT: 5

PARKS HIGHWAY

Fair

Over: CHULITNA RIVER

MILE POINT 98.3, Matanuska-Susitna, AK

Built 1970 Load: 32.5 t ADT: 1,120

OLD GLENN, PALMER

Fair

Over: GOAT CREEK

MILE POINT 6.2, Matanuska-Susitna, AK

Built 1977 Load: 32.6 t ADT: 1,710

VFW ROAD

Fair

Over: EAGLE RIVER E FRONTAGE

MILE POINT 0.5, Anchorage, AK

Built 1981 Load: 32.7 t ADT: 200

BRAVO ROUTE

Fair

Over: EAGLE RIVER

2.2 miles North of inters, Anchorage, AK

Built 1998 Load: 32.7 t ADT: 1,000

LAMPKIN RANGE RD

Fair

Over: BRANCH DELTA RIVER

3.1 KM SW OF XBRIE2, Fairbanks North Star, AK

Built 1962 Load: 32.7 t ADT: 25

ROAD

Fair

Over: TRIB OF KENNEL CR

FRESHWATER KENNEL CREEK, Hoonah-Angoon, AK

Built 1997 Load: 32.7 t

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

FRESHWATER PAVLOV, Hoonah-Angoon, AK

Built 2010 Load: 32.7 t

THANE ROAD

Fair

Over: SHEEP CREEK

MILE POINT 4.1, Juneau City and, AK

Built 1981 Load: 32.7 t ADT: 430

FERRY SHUTTLE RTE

Fair

Over: GRAVINA AIRPORT F.T. I

KETCHIKAN AIRPORT, Ketchikan Gateway, AK

Built 1998 Load: 32.7 t ADT: 348

8400000

Fair

Over: PERM

UPPER CARROLL, Ketchikan Gateway, AK

Built 1997 Load: 32.7 t ADT: 2

8400000

Fair

Over: PERM

UPPER CARROLL, Ketchikan Gateway, AK

Built 1997 Load: 32.7 t ADT: 2

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

FIRE COVE, Ketchikan Gateway, AK

Built 1992 Load: 32.7 t

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

SHELTER, Ketchikan Gateway, AK

Built 1995 Load: 32.7 t

NO DATA ENTERED

Fair

Over: PERM

UPPER CARROLL, Ketchikan Gateway, AK

Built 2002 Load: 32.7 t ADT: 2

LOGGING ROAD

Fair

Over: STREAM

KUPREANOF ISLAND AT KAKE, Petersburg, AK

Built 1997 Load: 32.7 t ADT: 10

LOGGING ROAD

Fair

Over: STREAM

KUPREANOF ISLAND, PORTAGE, Petersburg, AK

Built 1996 Load: 32.7 t

LOGGING ROAD

Fair

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 1977 Load: 32.7 t ADT: 5

LOGGING ROAD

Fair

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 1977 Load: 32.7 t ADT: 5

LOGGING ROAD

Fair

Over: STREAM

KUPREANOF ISLAND AT KAKE, Petersburg, AK

Built 1998 Load: 32.7 t ADT: 10

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

THOMAS BAY, Petersburg, AK

Built 2003 Load: 32.7 t ADT: 10

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

SUEMEZ, Prince of Wales-Hyder, AK

Built 1993 Load: 32.7 t

2160000

Fair

Over: MOD

LANCASTER, Prince of Wales-Hyder, AK

Built 1978 Load: 32.7 t

2054305-0.13

Fair

Over: PERM

STANEY, Prince of Wales-Hyder, AK

Built 2001 Load: 32.7 t ADT: 10

2058000-0.71

Fair

Over: MOD

NAUKATI, Prince of Wales-Hyder, AK

Built 1978 Load: 32.7 t ADT: 20

2720000-0.145

Fair

Over: MOD

WHALE PASS, Prince of Wales-Hyder, AK

Built 1978 Load: 32.7 t ADT: 50

2083-4.033

Fair

Over: NO DATA ENTERED

LAB BAY, Prince of Wales-Hyder, AK

Built 2007 Load: 32.7 t

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

KOSCIUSKO, Prince of Wales-Hyder, AK

Built 2003 Load: 32.7 t ADT: 10

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

SHAHEEN, Prince of Wales-Hyder, AK

Built 2004 Load: 32.7 t

LOGGING ROAD

Fair

Over: N FORK WHITE ROCK CREEK

FALSE ISLAND, Sitka City and, AK

Built 1975 Load: 32.7 t

LOGGING ROAD

Fair

Over: CAMP WATER CREEK

FALSE ISLAND, Sitka City and, AK

Built 1992 Load: 32.7 t

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

FALSE ISLAND, Sitka City and, AK

Built 1990 Load: 32.7 t

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

FALSE ISLAND, Sitka City and, AK

Built 1995 Load: 32.7 t

Showing 251-300 of 909 bridges

Related

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

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

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.