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

IVARS ROAD

Good

Over: SUCKER RIVER

3.2 MILE E. OF FORT YUKON, Yukon-Koyukuk, AK

Built 2017 Load: 28.1 t ADT: 50

LOGGING ROAD

Good

Over: STREAM

FRESHWATER PAVLOV, Hoonah-Angoon, AK

Built 1992 Load: 28.2 t

3000000-37.75

Good

Over: PERM

RATZ, Prince of Wales-Hyder, AK

Built 1991 Load: 28.2 t ADT: 50

ROAD

Good

Over: TAWAH CREEK

BROKEN BRIDGE ROAD, Yakutat City and, AK

Built 1982 Load: 28.5 t

CHENA HOT SPR RD

Good

Over: NORTH FORK CHENA RIVER

MILE POINT 45.7, Fairbanks North Star, AK

Built 1967 Load: 29.1 t ADT: 530

3030295-0.02

Good

Over: PERM

COFFMAN, Prince of Wales-Hyder, AK

Built 1996 Load: 29.5 t ADT: 100

ELLIOTT HIGHWAY

Good

Over: WEST FORK TOLOVANA RIVER

MILE POINT 69.8, Yukon-Koyukuk, AK

Built 1971 Load: 29.5 t ADT: 70

GOLDSTREAM ROAD

Good

Over: GOLDSTREAM CREEK

MILE POINT 1.0, Fairbanks North Star, AK

Built 1972 Load: 30.0 t ADT: 870

STEESE HIGHWAY

Good

Over: KOKOMO CREEK

MILE POINT 35.8, Fairbanks North Star, AK

Built 1967 Load: 30.0 t ADT: 210

LOGGING ROAD

Good

Over: NO DATA ENTERED

FRESHWATER, Hoonah-Angoon, AK

Built 2018 Load: 30.1 t ADT: 10

LOGGING ROAD

Good

Over: STREAM

GAME CREEK, Hoonah-Angoon, AK

Built 2018 Load: 30.1 t

LOGGING ROAD

Good

Over: MURI CREEK

CORNER BAY, Sitka City and, AK

Built 1993 Load: 30.1 t

LOGGING ROAD

Good

Over: STREAM

CORNER BAY, Sitka City and, AK

Built 1993 Load: 30.1 t ADT: 10

NO DATA ENTERED

Good

Over: NO DATA ENTERED

ZAREMBO ISLAND, Wrangell City and, AK

Built 2013 Load: 30.1 t ADT: 5

STEESE HIGHWAY

Good

Over: CHATANIKA RIVER

MILE POINT 37.3, Fairbanks North Star, AK

Built 1967 Load: 30.3 t ADT: 210

IRR:NOME-TELLER RD

Good

Over: FEATHER RIVER

MILE POINT 36.4, Nome, AK

Built 1967 Load: 30.3 t ADT: 20

STEESE HIGHWAY

Good

Over: FISH CREEK

MILE POINT 95.2, Yukon-Koyukuk, AK

Built 1971 Load: 30.4 t ADT: 100

LOGGING ROAD

Good

Over: STREAM

KUPREANOF ISLAND AT KAKE, Petersburg, AK

Built 1998 Load: 30.5 t

STEESE HIGHWAY

Good

Over: BOULDER CREEK

MILE POINT 120.8, Yukon-Koyukuk, AK

Built 1971 Load: 30.7 t ADT: 140

SEWARD HIGHWAY

Good

Over: CLEAR CREEK (SEWARD HWY)

MILE POINT 3.8, Kenai Peninsula, AK

Built 1967 Load: 30.9 t ADT: 3,510

LOGGING ROAD

Good

Over: STREAM

KUPREANOF ISLAND AT KAKE, Petersburg, AK

Built 1978 Load: 31.1 t ADT: 10

IRR BIA RTE 18

Good

Over: CATHEDRAL FALLS CREEK

3.5KM ALONG FS 6030, Prince of Wales-Hyder, AK

Built 1980 Load: 31.1 t ADT: 5

IRR:MARINE HWY RTE

Good

Over: OLD HARBOR CITY DOCK

OLD HARBOR, Kodiak Island, AK

Built 2011 Load: 31.3 t ADT: 100

3060000-0.54

Good

Over: MOD

WHALE PASS, Prince of Wales-Hyder, AK

Built 2000 Load: 31.4 t ADT: 10

NO DATA ENTERED

Good

Over: MOD

SHELTER, Ketchikan Gateway, AK

Built 2015 Load: 31.8 t ADT: 5

NO DATA ENTERED

Good

Over: NO DATA ENTERED

SHELTER, Ketchikan Gateway, AK

Built 2015 Load: 31.8 t ADT: 5

LOGGING ROAD

Good

Over: NO DATA ENTERED

KUIU ISLAND, Petersburg, AK

Built 1999 Load: 31.8 t ADT: 5

FDR 6593

Good

Over: STREAM - HAMILTON

ZAREMBO ISLAND, Wrangell City and, AK

Built 1994 Load: 31.8 t

FDR 6545

Good

Over: STREAM

ETOLIN ISLAND, Wrangell City and, AK

Built 1993 Load: 31.8 t

IRR BIA RTE 18

Good

Over: NORTH FORK HAMILTON CRK

10.4KM DOWN FS 6030, Prince of Wales-Hyder, AK

Built 1980 Load: 32.1 t ADT: 5

SEWARD HIGHWAY

Good

Over: PLACER RIVER MAIN CROSS

MILE POINT 77.5, Anchorage, AK

Built 2023 Load: 32.7 t ADT: 3,900

SEWARD HIGHWAY

Good

Over: PORTAGE CREEK NO 1

MILE POINT 78.1, Anchorage, AK

Built 2023 Load: 32.7 t ADT: 5,080

SEWARD HIGHWAY

Good

Over: TWENTY MILE RIVER

MILE POINT 79.9, Anchorage, AK

Built 2023 Load: 32.7 t ADT: 5,200

GRADY ROAD

Good

Over: SHIP CREEK

0.25 miles northeast of i, Anchorage, AK

Built 2005 Load: 32.7 t ADT: 500

BULLDOG TRAIL

Good

Over: SHIP CREEK

0.1 miles northwest of in, Anchorage, AK

Built 2005 Load: 32.7 t ADT: 100

LOGGING ROAD

Good

Over: NO DATA ENTERED

FRESHWATER PAVLOV, Hoonah-Angoon, AK

Built 1993 Load: 32.7 t

LOGGING ROAD

Good

Over: SEAGULL CREEK

GAME CREEK, Hoonah-Angoon, AK

Built 1975 Load: 32.7 t ADT: 10

LOGGING ROAD

Good

Over: CREEK

HOONAH - LONG ISLAND, Hoonah-Angoon, AK

Built 1994 Load: 32.7 t ADT: 50

LOGGING ROAD

Good

Over: CREEK

GAME CREEK, Hoonah-Angoon, AK

Built 1994 Load: 32.7 t ADT: 50

LOGGING ROAD

Good

Over: CREEK

GAME CREEK, Hoonah-Angoon, AK

Built 1994 Load: 32.7 t ADT: 50

NO DATA ENTERED

Good

Over: NO DATA ENTERED

HOONAH - LONG ISLAND, Hoonah-Angoon, AK

Built 1996 Load: 32.7 t ADT: 50

ROAD

Good

Over: STREAM

HOONAH - LONG ISLAND, Hoonah-Angoon, AK

Built 1996 Load: 32.7 t ADT: 50

ROAD

Good

Over: STREAM

FRESHWATER KENNEL CREEK, Hoonah-Angoon, AK

Built 1997 Load: 32.7 t

ROAD

Good

Over: STREAM

FRESHWATER KENNEL CREEK, Hoonah-Angoon, AK

Built 1997 Load: 32.7 t

ROAD

Good

Over: KENNEL CREEK

FRESHWATER KENNEL CREEK, Hoonah-Angoon, AK

Built 1997 Load: 32.7 t

ROAD

Good

Over: NO DATA ENTERED

FRESHWATER KENNEL CREEK, Hoonah-Angoon, AK

Built 1997 Load: 32.7 t

BASIN ROAD

Good

Over: BASIN ROAD TRESTLE

MILE POINT 0.3, Juneau City and, AK

Built 1936 Load: 32.7 t ADT: 280

8060210-0.238

Good

Over: NO DATA ENTERED

FIRE COVE, Ketchikan Gateway, AK

Built 1995 Load: 32.7 t

NO DATA ENTERED

Good

Over: PERM

UPPER CARROLL, Ketchikan Gateway, AK

Built 2002 Load: 32.7 t ADT: 2

LOGGING ROAD

Good

Over: STREAM

KUIU ISLAND, Petersburg, AK

Built 2000 Load: 32.7 t ADT: 5

Showing 501-550 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.