Matanuska-Susitna County, AK

26 public highway bridges

Matanuska-Susitna County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Matanuska-Susitna County, Alaska contains 26 public highway bridges. Roughly 15.4% are rated “Good,” 80.8% “Fair,” and 3.8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

26
Total Bridges
15.4%
Good
80.8%
Fair
3.8%
Poor Condition

Condition Distribution

Good
15.4% (4)
Fair
80.8% (21)
Poor
3.8% (1)

All Bridges (26)

DENALI HIGHWAY

Fair

Over: BRUSHKANA CREEK

MILE POINT 104.7, Matanuska-Susitna, AK

Built 1955 Load: 19.2 t ADT: 60

DENALI HIGHWAY

Fair

Over: CLEARWATER CREEK

MILE POINT 55.9, Matanuska-Susitna, AK

Built 1957 Load: 24.5 t ADT: 50

BIG LAKE ROAD

Fair

Over: FISH CREEK

MILE POINT 5.0, Matanuska-Susitna, AK

Built 1973 Load: 24.9 t ADT: 1,610

PARKS HIGHWAY

Fair

Over: KASHWITNA RIVER

MILE POINT 48.3, Matanuska-Susitna, AK

Built 1962 Load: 25.5 t ADT: 2,640

PARKS HIGHWAY

Fair

Over: HURRICANE GULCH

MILE POINT 139.7, Matanuska-Susitna, AK

Built 1971 Load: 25.5 t ADT: 940

PARKS HIGHWAY

Fair

Over: HONOLULU CREEK

MILE POINT 143.8, Matanuska-Susitna, AK

Built 1971 Load: 26.9 t ADT: 940

PARKS HIGHWAY

Fair

Over: EAST FORK CHULITNA RIVER

MILE POINT 150.8, Matanuska-Susitna, AK

Built 1967 Load: 29.6 t ADT: 900

WILLOW/FISHHOOK RD

Fair

Over: DECEPTION CREEK

MILE POINT 30.4, Matanuska-Susitna, AK

Built 1972 Load: 30.2 t ADT: 580

BRADLEY ROAD

Fair

Over: TRAPPER CREEK

MILE POINT 0.8, Matanuska-Susitna, AK

Built 1992 Load: 30.3 t ADT: 110

N SUSHANA ST

Fair

Over: LITTLE SUSITNA RIVER

WASILLA, Matanuska-Susitna, AK

Built 1984 Load: 30.4 t ADT: 10

PARKS HIGHWAY

Fair

Over: LITTLE WILLOW CREEK

MILE POINT 39.8, Matanuska-Susitna, AK

Built 1962 Load: 30.6 t ADT: 3,000

OLD GLENN, PALMER

Fair

Over: KNIK RIVER

MILE POINT 8.7, Matanuska-Susitna, AK

Built 1975 Load: 30.6 t ADT: 1,380

BACK ACRES ROAD

Fair

Over: BODENBURG CREEK

MILE POINT 0.1, Matanuska-Susitna, AK

Built 2002 Load: 32.0 t ADT: 30

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

PARKS HIGHWAY

Fair

Over: LITTLE COAL CREEK

MILE POINT 129.0, Matanuska-Susitna, AK

Built 1969 Load: 32.8 t ADT: 970

KNIK RIVER ROAD

Fair

Over: HUNTER CREEK

MILE POINT 9.6, Matanuska-Susitna, AK

Built 1995 Load: 33.0 t ADT: 230

PARKS HIGHWAY

Fair

Over: TROUBLESOME CREEK

MILE POINT 102.9, Matanuska-Susitna, AK

Built 1970 Load: 35.3 t ADT: 1,120

GLENN HIGHWAY

Fair

Over: MATANUSKA RIV NORTHBOUND

MILE POINT 30.4, Matanuska-Susitna, AK

Built 1965 Load: 37.4 t ADT: 13,300

IRR:CHICKALOON FRK

Fair

Over: CHICKALOON RIVER NO. 1

MILE POINT 0.5, Matanuska-Susitna, AK

Built 1982 Load: 40.7 t ADT: 40

PARKS HIGHWAY

Fair

Over: GLENN PARKS OVERHEAD NB

MILE POINT 0.7, Matanuska-Susitna, AK

Built 2004 Load: 43.5 t ADT: 3,272

FISHHOOK/PALMER RD

Good

Over: LITTLE SUSITNA RIVER

MILE POINT 8.5, Matanuska-Susitna, AK

Built 1991 Load: 38.5 t ADT: 1,030

IRR:CHICKALOON FRK

Good

Over: CHICKALOON RIVER NO. 2

MILE POINT 1.1, Matanuska-Susitna, AK

Built 1982 Load: 40.7 t ADT: 40

PARKS HIGHWAY

Good

Over: LITTLE SUSITNA RIVER

MILE POINT 21.8, Matanuska-Susitna, AK

Built 2004 Load: 49.1 t ADT: 4,700

PARKS HIGHWAY

Good

Over: MIDDLE FORK CHULITNA RIV

MILE POINT 160.3, Matanuska-Susitna, AK

Built 2016 Load: 59.1 t ADT: 900

DENALI HIGHWAY

Poor

Over: SUSITNA RIVER

MILE POINT 79.5, Matanuska-Susitna, AK

Built 1956 Load: 21.1 t ADT: 60

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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.