Skagit County, WA

256 public highway bridges

Skagit County Bridge Snapshot

Skagit County, Washington contains 256 public highway bridges in the FHWA National Bridge Inventory. Roughly 36.3% are rated “Good,” 55.1% “Fair,” 2% “Poor,” and 2% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in WA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

256

Total Bridges

36.3%

Good

2%

Poor

2%

Structurally Deficient

Condition Distribution

Good

36.3% (93)

Fair

55.1% (141)

Poor

2% (5)

SD

2% (5)

All Bridges (256)

Sort:

SR 530

Over: SAUK RIVER

3.5 N SNOHOMISH CO, Skagit, WA

Built 1958 Load: 23.6 t ADT: 1,439

RD. NO. 25

Over: SUIATTLE RIVER

M.P. 0.1 RD. NO. 25, Skagit, WA

Built 1959 Load: 23.6 t ADT: 24

BAY VIEW-EDISON RD

Over: SAMISH RIVER

0.5 W JCT SR 537, Skagit, WA

Built 1965 Load: 23.6 t ADT: 1,026

CASCADE RIVER RD

Over: N FORK CASCADE R

16.02 E JCT SR 20, Skagit, WA

Built 1986 Load: 23.6 t ADT: 84

CASCADE RIVER ROAD

Over: NORTH FORK CASCADE RIVER

20.6 Miles East of Marble, Skagit, WA

Built 1979 Load: 23.6 t ADT: 50

BENSON RIDGE LANE

Over: CARPENTER CREEK

1.2 E I-5 JCT STACKPOLE, Skagit, WA

Built 1983 Load: 23.7 t ADT: 46

ROCKPORT CASCADE

Over: ILLABOT CREEK (EAST)

4.2 E JCT SR 530, Skagit, WA

Built 1970 Load: 23.7 t ADT: 262

ROCKPORT CASCADE

Over: CASCADE RIVER

0.04 S JCT CASCADE RD, Skagit, WA

Built 1967 Load: 24.0 t ADT: 294

SR 9

Over: LAKE CREEK

3.7 N JCT SR 534, Skagit, WA

Built 1952 Load: 24.3 t ADT: 1,540

RD. NO. 2820

Over: N FORK STILLY RIVER

M.P. 0.2 RD. NO. 2820, Skagit, WA

Built 1967 Load: 24.5 t ADT: 62

CONWAY HILL ROAD

Over: CARPENTER CREEK

0.5 E JCT INTERSTATE 5, Skagit, WA

Built 1980 Load: 24.5 t ADT: 95

PULVER ROAD

Over: JOE LEARY SLOUGH

.6 S JCT SR 11, Skagit, WA

Built 1955 Load: 24.5 t ADT: 928

CONC SAUK VALLEY R

Over: SKAGIT RIVER

1.5 S JCT SR 20, Skagit, WA

Built 1952 Load: 24.9 t ADT: 2,562

LAKE CAVANAUGH RD

Over: BEAR CREEK

8.0 E JCT SR 9, Skagit, WA

Built 1967 Load: 24.9 t ADT: 578

SR 11

Over: JOE LEARY SLOUGH

0.7 N JCT I-5, Skagit, WA

Built 1922 Load: 25.3 t ADT: 4,809

SWAN ROAD

Over: NOOKACHAMPS CREEK

0.37W JCT BABCOCK/MUDLAKE, Skagit, WA

Built 1976 Load: 25.3 t ADT: 1,100

SR 530

Over: WHITE CREEK

7.8 N SNOHOMISH CO, Skagit, WA

Built 1974 Load: 25.4 t ADT: 1,439

SR 9

Over: LAKE CREEK

2.8 N JCT SR 534, Skagit, WA

Built 1966 Load: 25.4 t ADT: 1,540

RD. NO. 2820

Over: CREVICE CREEK

M.P. 0.1 RD. NO. 2820, Skagit, WA

Built 1966 Load: 25.4 t ADT: 62

LAKE SAMISH RD

Over: BEAR CREEK

2.0 NW JCT I-5, Skagit, WA

Built 1959 Load: 25.4 t ADT: 491

OLD HWY 99 NORTH

Over: FRIDAY CREEK

4.3 N JCT COOK RD., Skagit, WA

Built 1956 Load: 25.4 t ADT: 2,682

MARCH POINT ROAD

Over: PETROLEUM PIPELINES

1.6 N JCT SR 20, Skagit, WA

Built 1960 Load: 25.4 t ADT: 678

I-5

Over: COLONY RD

8.8 N JCT SR 11, Skagit, WA

Built 1963 Load: 25.6 t ADT: 23,247

SOUTH SKAGIT HWY

Over: CUMBERLAND CREEK

11.5 E JCT SR 9, Skagit, WA

Built 1961 Load: 25.6 t ADT: 635

MINKLER ROAD

Over: WISEMAN CREEK

0.5 W JCT SR 20, Skagit, WA

Built 1967 Load: 25.9 t ADT: 1,024

FARM TO MARKET RD.

Over: SAMISH R

5.9 N JCT SR 20, Skagit, WA

Built 1963 Load: 26.3 t ADT: 920

SR 20

Over: SHIP HBR/GUEMES CHANNEL

7.8N ON SR20 SPUR, Skagit, WA

Built 1971 Load: 26.3 t ADT: 3,227

SR 20

Over: SHIP HBR/GUEMES CHANNEL

7.8N ON SR20 SPUR, Skagit, WA

Built 1971 Load: 26.3 t ADT: 3,227

I-5

Over: SKAGIT RIVER

0.7 N JCT SR 538, Skagit, WA

Built 1955 Load: 27.2 t ADT: 76,218

OLD HWY 99 NORTH

Over: SILVER CREEK

0.4 SE JCT LAKE SAMISH RD, Skagit, WA

Built 1934 Load: 27.2 t ADT: 1,687

BEAVER LAKE RD

Over: NOOKACHAMPS CREEK

3.0 SE JCT SR 9, Skagit, WA

Built 1977 Load: 27.2 t ADT: 186

BAKER LAKE RD

Over: W FORK GRANDY CK

2. NE JCT SR 20, Skagit, WA

Built 1968 Load: 27.5 t ADT: 725

FARM TO MARKET RD.

Over: N DRAINAGE DITCH

7.7 N JCT SR 20, Skagit, WA

Built 1951 Load: 28.1 t ADT: 1,231

SR 20

Over: GULCH

27.3 E JCT SR 9, Skagit, WA

Built 1953 Load: 28.1 t ADT: 2,925

SR 536

Over: SKAGIT RIVER

4.7 E JCT SR 20, Skagit, WA

Built 1953 Load: 28.1 t ADT: 18,714

SR 9

Over: HARTS SLOUGH

4.9 N JCT SR 538, Skagit, WA

Built 1959 Load: 28.5 t ADT: 10,545

CAPE HORN ROAD

Over: GRANDY CREEK

2.25 W JCT SR 20, Skagit, WA

Built 1967 Load: 28.8 t ADT: 391

FARM TO MARKET RD.

Over: JOE LEARY SL

5.0 N JCT SR 20, Skagit, WA

Built 1950 Load: 29.0 t ADT: 981

CAPE HORN ROAD

Over: ALDER CREEK

0.75 E JCT SR 20, Skagit, WA

Built 1972 Load: 29.0 t ADT: 227

RD. NO. 26

Over: TENAS CREEK

M.P. 0.0 RD. NO. 26, Skagit, WA

Built 1963 Load: 29.1 t ADT: 79

I-5

Over: DRAINAGE DITCH

2.4 N JCT SR 11, Skagit, WA

Built 1964 Load: 29.2 t ADT: 26,524

I-5

Over: DRAINAGE DITCH

2.4 N JCT SR 11, Skagit, WA

Built 1964 Load: 29.2 t ADT: 26,524

BAY VIEW-EDISON RD

Over: STATE PARK ROAD

3.5 N JCT SR 20, Skagit, WA

Built 1969 Load: 29.2 t ADT: 751

LAKE SAMISH RD

Over: FRIDAY CREEK

0.25 E JCT INTERSTATE 5, Skagit, WA

Built 1965 Load: 29.5 t ADT: 5,124

BAKER LAKE ROAD

Over: BEAR CREEK

9.5 NE JCT SR 20, Skagit, WA

Built 1966 Load: 29.5 t ADT: 714

SR 9

Over: SAMISH RIVER

6.4 N JCT SR 20, Skagit, WA

Built 1947 Load: 29.8 t ADT: 3,638

SOUTH SKAGIT HWY

Over: PRESSENTIN CREEK

18.5 E JCT SR9, Skagit, WA

Built 1966 Load: 29.8 t ADT: 635

SR 530

Over: SKAGIT RIVER

14.5 N SNOHOMISH CO, Skagit, WA

Built 1961 Load: 29.9 t ADT: 1,439

FRIDAY CREEK ROAD

Over: FRIDAY CREEK

2.24 N JCT OLD 99 N, Skagit, WA

Built 1977 Load: 30.1 t ADT: 234

SR 20

Over: SWINOMISH CHAN

9.3 E ISLAND CO, Skagit, WA

Built 1972 Load: 30.8 t ADT: 17,952

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026