Snohomish County, WA

516 public highway bridges

Snohomish County Bridge Snapshot

Snohomish County, Washington contains 516 public highway bridges in the FHWA National Bridge Inventory. Roughly 37.8% are rated “Good,” 37.8% “Fair,” 3.7% “Poor,” and 3.7% 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.

516
Total Bridges
37.8%
Good
3.7%
Poor
3.7%
Structurally Deficient

Condition Distribution

Good
37.8% (195)
Fair
37.8% (195)
Poor
3.7% (19)
SD
3.7% (19)

All Bridges (516)

TOTEM BEACH RD

Good

Over: MISSION CREEK

5.4 MI W JCT I-5, Snohomish, WA

Built 1989 Load: 49.9 t ADT: 1,224

RUSSELL RD

Good

Over: PILCHUCK RIVER

3.1 S JCT SR92, Snohomish, WA

Built 1996 Load: 49.9 t ADT: 773

23RD DR SE

Good

Over: WETLAND

0.2 E JCT SR 527, Snohomish, WA

Built 2003 Load: 50.8 t ADT: 144

88TH STREET NE

Good

Over: QUILCEDA CR

1.6 N JCT SR 528, Snohomish, WA

Built 1996 Load: 51.7 t ADT: 27,672

US 2

Good

Over: EBEY ISLAND

0.7 E JCT I-5, Snohomish, WA

Built 2001 Load: 51.7 t ADT: 39,701

US 2

Good

Over: BARCLAY CREEK

25.0 E JCT SR 203, Snohomish, WA

Built 2003 Load: 51.7 t ADT: 5,659

Everett Avenue

Good

Over: BNSF RR

Inter Terminal & Everett, Snohomish, WA

Built 2003 Load: 51.7 t ADT: 967

SR 522

Good

Over: W MAIN ST (164TH ST SE)

9.1 E JCT SR 9, Snohomish, WA

Built 2012 Load: 52.2 t ADT: 15,235

SR 530

Good

Over: SCHOOLYARD CREEK

4.8 E JCT SR 9, Snohomish, WA

Built 2019 Load: 52.2 t ADT: 5,784

US 2

Good

Over: 87TH AVE SE

1.9 E JCT SR 204, Snohomish, WA

Built 1982 Load: 52.6 t ADT: 26,056

SR 9

Good

Over: HARVEY CK RD / HARVEY CK

1.4 N JCT SR 530, Snohomish, WA

Built 2008 Load: 53.5 t ADT: 7,017

SNOHOMISH-MONRO RD

Good

Over: FRENCH CREEK

1.8 S JCT SR2, Snohomish, WA

Built 2000 Load: 53.5 t ADT: 4,129

RD. NO. 4030

Good

Over: MALLARDY CREEK

M.P. 0.1 RD. NO. 4030, Snohomish, WA

Built 1978 Load: 53.6 t ADT: 34

Jordan Road

Good

Over: Jim Creek

3.5 SE JCT SR 530, Snohomish, WA

Built 2014 Load: 53.8 t ADT: 1,651

SR 522

Good

Over: ELLIOTT ROAD

6.3 E JCT SR 9, Snohomish, WA

Built 2013 Load: 54.1 t ADT: 15,235

MANN RD

Good

Over: UN-NAMED STREAM

1.4 SE JCT SR2, Snohomish, WA

Built 2023 Load: 54.1 t ADT: 1,166

20TH ST NE

Good

Over: CATHERINE CREEK

0.38 E JCT 124TH AV NE, Snohomish, WA

Built 1997 Load: 54.4 t ADT: 3,192

16TH ST NE

Good

Over: CATHERINE CREEK

1.9 S JCT SR 92, Snohomish, WA

Built 1998 Load: 54.8 t ADT: 1,285

Elliott Road

Good

Over: Elliott Creek

1.5 E JCT SR9, Snohomish, WA

Built 2013 Load: 55.3 t ADT: 2,476

CARTER RD.

Good

Over: SWAMP CREEK

0.2 N. KING CO. LINE, Snohomish, WA

Built 2013 Load: 55.7 t ADT: 3,021

SNOHOMISH MNRO RD

Good

Over: PILCHUCK RIVER

0.8 S JCT SR 2, Snohomish, WA

Built 1999 Load: 56.2 t ADT: 4,458

311 TH AV SE

Good

Over: SKYKOMISH SLOUGH

0.5 S JCT SR2, Snohomish, WA

Built 2006 Load: 56.2 t ADT: 2,263

SR 96

Good

Over: NORTH CREEK

0.5 E JCT I-5, Snohomish, WA

Built 2023 Load: 58.6 t ADT: 47,637

US 2

Good

Over: PILCHUCK R, MACHIAS RD

1.3 E JCT SR 9, Snohomish, WA

Built 1983 Load: 59.0 t ADT: 22,670

STANWOOD-BRYANT RD

Good

Over: PILCHUCK CREEK

2.0 E JCT I-5, Snohomish, WA

Built 1996 Load: 61.7 t ADT: 3,290

66th ST NE

Good

Over: LITTLE PILCHUCK CREEK

0.5 N JCT SR 92, Snohomish, WA

Built 2006 Load: 61.7 t ADT: 289

FIRST ST

Good

Over: MAY CREEK

0.4 NE JCT US 2, Snohomish, WA

Built 2007 Load: 62.2 t ADT: 1,560

35TH AVE SE

Good

Over: PENNY CREEK

0.65 MI S OF SR 96, Snohomish, WA

Built 2019 Load: 62.5 t ADT: 100

MOUNTAIN LOOP HWY

Good

Over: BENSON CREEK

11.2 MI E JCT SR 92, Snohomish, WA

Built 1995 Load: 62.6 t ADT: 3,520

BROADWAY

Good

Over: BNSF RAILWAY

1.4 N JCT I-5, Snohomish, WA

Built 2016 Load: 62.9 t ADT: 20,800

MOUNTAIN LOOP HWY

Good

Over: MARTEN CREEK

20.6 E JCT SR 92, Snohomish, WA

Built 2011 Load: 64.5 t ADT: 1,574

WOODS CR RD

Good

Over: WEST FORK WOODS CREEK

4.9 NE JCT SR 2, Snohomish, WA

Built 1991 Load: 65.3 t ADT: 1,481

SR 528

Good

Over: ALLEN CREEK

0.6 E JCT SR 529, Snohomish, WA

Built 1988 Load: 67.1 t ADT: 21,220

SR 92

Good

Over: LITTLE PILCHUCK CREEK

2.7 E JCT SR 9, Snohomish, WA

Built 2018 Load: 67.1 t ADT: 12,468

419th Ave SE

Good

Over: May Creek

0.7 NE JCT SR 2, Snohomish, WA

Built 2009 Load: 68.0 t ADT: 215

179TH AV SE

Good

Over: PEDESTRIAN TUNNEL

0.1 N JCT SR2, Snohomish, WA

Built 1985 Load: 72.6 t ADT: 3,540

SWEDE HEAVEN RD

Good

Over: N.F.STILLAGUAMISH RIVER

0.8 N JCT SR 530, Snohomish, WA

Built 1991 Load: 73.5 t ADT: 986

JIM CREEK RD

Good

Over: JIM CREEK

6.0 E JCT SR 530, Snohomish, WA

Built 2022 Load: 78.4 t ADT: 228

51ST AVENUE NE

Good

Over: QUILCEDA CREEK

1.3 MI E INT I-5, Snohomish, WA

Built 2008 Load: 86.2 t ADT: 7,619

SR 522

Good

Over: FALES RD

4.5 E JCT SR 9, Snohomish, WA

Built 2006 Load: 89.8 t ADT: 31,683

SR 530

Good

Over: TRAFTON CREEK

3.5 E JCT SR 9, Snohomish, WA

Built 2020 Load: 89.8 t ADT: 7,922

PIONEER HIGHWAY

Good

Over: STILLAGUAMISH RIVER

2.0 W JCT I-5, Snohomish, WA

Built 1998 Load: 89.8 t ADT: 4,105

SR 522

Good

Over: WILDLIFE CROSSING

7.9 E JCT SR 9, Snohomish, WA

Built 2012 Load: 96.9 t ADT: 30,470

SR 532

Good

Over: CHURCH CREEK

3.2 E SNOHOMISH CO, Snohomish, WA

Built 2017 Load: 96.9 t ADT: 17,817

187th Pl SE

Good

Over: Un-named wetland

1.6 E SR 527, Snohomish, WA

Built 2015 Load: 96.9 t ADT: 1,032

LAKE CHAPLAIN ROAD

Good

Over: WOODS LAKE CREEK

4.7 NE JCT SR2, Snohomish, WA

Built 2017 Load: 96.9 t ADT: 100

88th St SE

Good

Over: PILCHUCK R. OVERFLOW

0.1 SW INT SR2, Snohomish, WA

Built 1986 Load: 99.9 t ADT: 13,397

MUKILTEO BLVD

Poor

Over: EDGEWATER CREEK

0.07 W JCT SHORE AVE, Snohomish, WA

Built 1946 Load: 8.7 t ADT: 4,883

MULIKLTEO BLVD

Poor

Over: MERRILL & RING CREEK

0.15 W JCT HARBOR LANE, Snohomish, WA

Built 1931 Load: 13.6 t ADT: 6,123

LOCUST WAY

Poor

Over: SWAMP CREEK

1.1 N KING CO LINE, Snohomish, WA

Built 1960 Load: 15.4 t ADT: 7,454

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

Related

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