Skagit County, WA

256 public highway bridges

Skagit County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Skagit County, Washington contains 256 public highway bridges. Roughly 36.3% are rated “Good,” 55.1% “Fair,” and 2% “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.

256
Total Bridges
36.3%
Good
55.1%
Fair
2%
Poor Condition

Condition Distribution

Good
36.3% (93)
Fair
55.1% (141)
Poor
2% (5)

All Bridges (256)

MINKLER ROAD 9350

Fair

Over: COAL CREEK

0.1 E JCT SIMS ROAD, Skagit, WA

Built 1984 Load: 51.7 t ADT: 1,136

OLD HWY 99

Fair

Over: OVERFLOW CHANNEL

1.0 N JCT COOK RD., Skagit, WA

Built 2006 Load: 56.2 t ADT: 4,372

CONRAD ROAD

Fair

Over: SWIFT CREEK

0.2 E JCT SR 20, Skagit, WA

Built 1981 Load: 58.0 t ADT: 23

NORTH REED STREET

Fair

Over: BRICKYARD CREEK

0.4 MI N of SR20, Skagit, WA

Built 2002 Load: 60.6 t ADT: 1,031

EAST JOHNSON ROAD

Fair

Over: CARPENTER CREEK

1.0 E JCT CEDARDALE ROAD, Skagit, WA

Built 1981 Load: 66.2 t ADT: 85

CASCADE RIVER RD

Fair

Over: MARBLE CREEK

8.3 E JCT SR 20, Skagit, WA

Built 1982 Load: 87.8 t ADT: 188

I-5

Fair

Over: I-5 DRAINAGE

2.6 N JCT 534, Skagit, WA

Built 1972 Load: 89.8 t ADT: 67,923

CONCRETE-SAUK VLY

Fair

Over: MILLER CREEK

9 MI SE OF SR20, Skagit, WA

Built 1999 Load: 89.8 t ADT: 158

SR 20

Good

Over: GRANITE CREEK

2.5 E WHATCOM CO, Skagit, WA

Built 1971 Load: 12.0 t ADT: 1,200

SR 20

Good

Over: DIOBSUD CREEK

10.9 E JCT SR 530, Skagit, WA

Built 1950 Load: 15.2 t ADT: 1,971

IRR PIONEER PARKWA

Good

Over: SWINOMISH SLOUGH

0.95 JCT MORRIS ON MAPLE, Skagit, WA

Built 1957 Load: 17.8 t ADT: 3,101

SR 11

Good

Over: HILLSIDE

13.3 N JCT I-5, Skagit, WA

Built 1920 Load: 18.1 t ADT: 2,412

ROAD

Good

Over: FINNEY CREEK

NO DATA ENTERED, Skagit, WA

Built 2005 Load: 20.9 t ADT: 50

SOUTH SKAGIT HWY

Good

Over: FINNEY CREEK

19.0 E JCT SR 9, Skagit, WA

Built 1954 Load: 21.7 t ADT: 635

SR 530

Good

Over: BOHS SLOUGH

14.4 N SNOHOMISH CO, Skagit, WA

Built 1961 Load: 21.8 t ADT: 1,439

HAMILTON CEMETERY

Good

Over: MUDDY CREEK

0.5 W JCT SR 20, Skagit, WA

Built 1965 Load: 22.7 t ADT: 171

SR 20

Good

Over: JONES CREEK

8.6 E JCT SR 9, Skagit, WA

Built 1966 Load: 23.3 t ADT: 7,222

SR 20

Good

Over: HIGGINS SLOUGH

1.2 E JCT SR 536, Skagit, WA

Built 1968 Load: 24.5 t ADT: 14,246

SR 20

Good

Over: ALDER CREEK

13.3 E JCT SR 9, Skagit, WA

Built 1948 Load: 24.9 t ADT: 5,744

I-5

Good

Over: COLONY RD

8.8 N JCT SR 11, Skagit, WA

Built 1963 Load: 25.9 t ADT: 23,247

SR 20

Good

Over: E FK RED CABIN CR

10.2 E JCT SR 9, Skagit, WA

Built 1966 Load: 26.2 t ADT: 7,222

COOK ROAD

Good

Over: DD#14 DITCH

0.5 E JCT INTERSTATE 5, Skagit, WA

Built 2000 Load: 26.3 t ADT: 16,617

COOK ROAD

Good

Over: BRICKYARD CREEK

MP 5.38 COOK RD, Skagit, WA

Built 2000 Load: 26.3 t ADT: 15,887

SR 20

Good

Over: JACKMAN CREEK

25.2 E JCT SR 9, Skagit, WA

Built 1945 Load: 26.6 t ADT: 2,925

SR 534

Good

Over: HILL DITCH

0.5 E JCT I-5, Skagit, WA

Built 1949 Load: 27.2 t ADT: 3,778

CASCADE RIVER ROAD

Good

Over: LOOKOUT CREEK

7 MI E JCT SR 20, Skagit, WA

Built 1981 Load: 27.9 t ADT: 188

SR 20

Good

Over: HIGGINS SLOUGH

0.7 E JCT SR 536, Skagit, WA

Built 1966 Load: 28.1 t ADT: 13,243

SR 9

Good

Over: BATEY SLOUGH

5.5 N JCT SR 538, Skagit, WA

Built 1959 Load: 28.5 t ADT: 10,545

I-5

Good

Over: GAGES SLOUGH

1.7 N JCT SR 538, Skagit, WA

Built 1954 Load: 29.5 t ADT: 31,499

I-5

Good

Over: GAGES SLOUGH

1.7 N JCT SR 538, Skagit, WA

Built 1954 Load: 29.5 t ADT: 31,499

LYMAN HAMILTON HWY

Good

Over: MUDDY CREEK

0.3 M W HAMILTON, Skagit, WA

Built 1955 Load: 30.8 t ADT: 198

SR 20

Good

Over: HIGGINS SLOUGH

2.2 E JCT SR 536, Skagit, WA

Built 1968 Load: 31.8 t ADT: 14,246

CONC-SAUK VALLEY

Good

Over: NORTH OSTERMAN CK

13.2 MI SE OF SR 20, Skagit, WA

Built 2021 Load: 32.4 t ADT: 158

SR 20

Good

Over: SWIFT CREEK

2.0 E JCT SR 530, Skagit, WA

Built 1955 Load: 32.7 t ADT: 2,432

SR 11

Good

Over: CLIFF

11.9 N JCT I-5, Skagit, WA

Built 1999 Load: 32.7 t ADT: 2,412

NICHOLSON RD

Good

Over: CHILDS CREEK

0.1 S JCT SR 20, Skagit, WA

Built 1979 Load: 32.7 t ADT: 40

FINNEY CREEK ROAD

Good

Over: FINNEY CREEK

4.6 W CONC SAUK VALLEY RD, Skagit, WA

Built 1952 Load: 33.7 t ADT: 41

SR 20

Good

Over: SWINOMISH CHANNEL

9.3 E ISLAND CO, Skagit, WA

Built 1981 Load: 34.5 t ADT: 17,952

SR 20

Good

Over: HIGGINS SLOUGH

0.7 E JCT SR 536, Skagit, WA

Built 2007 Load: 34.5 t ADT: 13,243

ROAD

Good

Over: CASCADE RIVER

NO DATA ENTERED, Skagit, WA

Built 1978 Load: 35.4 t ADT: 10

BEAVER POND DR N

Good

Over: UNNAMED CREEK

0.2 N JCT EAGLEMONT DR, Skagit, WA

Built 2001 Load: 36.0 t ADT: 400

SR 9

Good

Over: E FK NOOKACHAMPS CR

1.4 N JCT SR 538, Skagit, WA

Built 1971 Load: 36.3 t ADT: 6,059

I-5 NB

Good

Over: FISHER CREEK

1.8 N SNOHOMISH CO, Skagit, WA

Built 2016 Load: 36.9 t ADT: 31,960

I-5 SB

Good

Over: FISHER CREEK

1.8 N SNOHOMISH CO, Skagit, WA

Built 2016 Load: 36.9 t ADT: 31,960

LANDMARK DRIVE

Good

Over: UNNAMED CREEK

EAST OF JCT S WAUGH RD, Skagit, WA

Built 1994 Load: 36.9 t ADT: 500

ROCKPORT CASCADE

Good

Over: ILLABOT CREEK (MIDDLE)

4.2 E JCT SR 530, Skagit, WA

Built 2018 Load: 36.9 t ADT: 262

ROCKPORT CASCADE R

Good

Over: ILLABOT CREEK (WEST)

4.2 E JCT SR 530, Skagit, WA

Built 2018 Load: 36.9 t ADT: 262

I-5

Good

Over: FRIDAY CREEK

11.1 N JCT SR 11, Skagit, WA

Built 1964 Load: 37.2 t ADT: 23,218

I-5

Good

Over: FRIDAY CREEK

11.1 N JCT SR 11, Skagit, WA

Built 1964 Load: 37.2 t ADT: 23,218

SOUTH SKAGIT HWY

Good

Over: DAVIS SLOUGH

13.9 E JCT SR-9, Skagit, WA

Built 2014 Load: 37.2 t ADT: 610

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.