Snohomish County, WA

516 public highway bridges

Snohomish County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Snohomish County, Washington contains 516 public highway bridges. Roughly 37.8% are rated “Good,” 37.8% “Fair,” and 3.7% “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.

516

Total Bridges

37.8%

Good

37.8%

Fair

3.7%

Poor Condition

Condition Distribution

Good

37.8% (195)

Fair

37.8% (195)

Poor

3.7% (19)

All Bridges (516)

Sort:

GN RY

Over: US 2

16.1 E JCT SR 203, Snohomish, WA

Built 1963 ADT: 6,711

BOEING TRAFFIC

Over: STATE ROUTE 526

1.2 E JCT SR 525, Snohomish, WA

Built 1968 ADT: 39,841

ALDERWOOD MALL PKW

Over: I-5

0.6 N JCT SR 524, Snohomish, WA

Built 1996 ADT: 150,342

GN RY

Over: US 2

21.0 E JCT SR 203, Snohomish, WA

Built 1963 ADT: 5,659

BROADWAY AVE. NB

Over: I-5 RAMPS

0.1 N JCT I-5, Snohomish, WA

Built 1950 ADT: 8,661

I-5

Over: SR 528 4TH ST

JCT I-5, Snohomish, WA

Built 1952 ADT: 25,693

I-5

Over: EBEY SL / SR 529 / RR

6.9 N JCT SR 529 SPUR, Snohomish, WA

Built 1954 ADT: 8,045

SR 529

Over: SR 529/E MARINE VIEW DR

4.5 N JCT SR 529 SPUR, Snohomish, WA

Built 1955 ADT: 11,806

SR 529

Over: SR 529/E MARINE VIEW DR

4.5 N JCT SR 529 SPUR, Snohomish, WA

Built 1955 ADT: 11,806

I-5

Over: SR 532/268TH ST NE

7.2 E SNOHOMISH CO, Snohomish, WA

Built 1957 ADT: 12,622

NP RY

Over: STATE ROUTE 522

JCT SR 9, Snohomish, WA

Built 1962 ADT: 29,880

228TH ST SW

Over: I-5, RAMPS

1.0 N JCT SR 104, Snohomish, WA

Built 1963 ADT: 175,714

I-5 SB TO SR 99 SB

Over: SR 526 EB TO I-5 SB

JCT I-5 & SR 527, Snohomish, WA

Built 1963 ADT: 14,690

SR 99

Over: I-5

2.8 N JCT SR 96, Snohomish, WA

Built 1963 ADT: 122,990

I-5

Over: SR 524 SPUR/44TH AVE W

0.5 E JCT SR 524, Snohomish, WA

Built 1963 ADT: 26,181

I-5

Over: SR 524 SPUR/44TH AVE W

0.5 E JCT SR 524, Snohomish, WA

Built 1963 ADT: 26,181

SR 524

Over: I-5

JCT SR 524, Snohomish, WA

Built 1964 ADT: 150,342

BICKFORD AVE

Over: SR 9

3.9 N JCT SR 96, Snohomish, WA

Built 1963 ADT: 21,748

236TH ST SW

Over: I-5

0.4 N JCT SR 104, Snohomish, WA

Built 1963 ADT: 155,748

SR 530

Over: I-5

2.6 N JCT SR 531, Snohomish, WA

Built 1965 ADT: 76,248

US 2

Over: EBEY SLOUGH AND SR 204

JCT US 2, Snohomish, WA

Built 1968 ADT: 7,066

I-5

Over: SR 529 / PACIFIC AVE

JCT I-5, Snohomish, WA

Built 1966 ADT: 5,124

I-5

Over: SR 529 - PACIFIC AVE

JCT I-5, Snohomish, WA

Built 1966 ADT: 5,124

I-5

Over: US 2 EB/HEWITT AVE

BEGIN ROUTE US 2 EB, Snohomish, WA

Built 1966 ADT: 9,181

I-5

Over: US 2 EB/HEWITT AVE

BEGIN ROUTE US 2 EB, Snohomish, WA

Built 1966 ADT: 9,181

I-5

Over: SR 529 SPUR/EVERETT AVE

JCT I-5, Snohomish, WA

Built 1966 ADT: 6,225

I-5

Over: SR 529 SPUR/EVERETT AVE

JCT I-5, Snohomish, WA

Built 1966 ADT: 6,225

N-E RAMP

Over: HEWITT AVE

1.1 N JCT SR 526, Snohomish, WA

Built 1966 ADT: 9,181

75TH ST SE

Over: I-5

0.9 N JCT SR 527, Snohomish, WA

Built 1966 ADT: 186,520

US 2

Over: S-E RAMP

5.0 N JCT SR 527, Snohomish, WA

Built 1967 ADT: 9,973

US 2 WB

Over: S-E RAMP

5.0 N JCT SR 527, Snohomish, WA

Built 1967 ADT: 9,973

I-5

Over: W-S,W-W,S-E RAMPS

JCT US 2, Snohomish, WA

Built 1967 ADT: 24,682

I-5

Over: W-S,W-W,S-E RAMPS

JCT US 2, Snohomish, WA

Built 1967 ADT: 24,682

SR 529 SPUR

Over: I-5 S-E RAMP

5.0 N JCT SR 527, Snohomish, WA

Built 1967 ADT: 9,973

23RD ST

Over: I-5, W-N RAMP

0.6 N JCT US 2, Snohomish, WA

Built 1967 ADT: 149,914

41ST ST

Over: BROADWAY

JCT I-5, Snohomish, WA

Built 1967 ADT: 29,379

US 2

Over: SR 204

JCT US 2, Snohomish, WA

Built 1967 ADT: 7,679

12TH ST NE

Over: I-5

2.4 N JCT US 2, Snohomish, WA

Built 1967 ADT: 127,680

I-5

Over: SNOHOMISH RIVER, RR

1.0 N JCT US 2, Snohomish, WA

Built 1968 ADT: 11,309

I-5

Over: SNOHOMISH R GN RY

1.0 N JCT US 2, Snohomish, WA

Built 1968 ADT: 11,309

SR 527

Over: I-405

1.7 N KING CO, Snohomish, WA

Built 1968 ADT: 91,468

I-5

Over: SR 529 NB, RAMP

JCT I-5, Snohomish, WA

Built 1968 ADT: 8,045

I-5

Over: SR 529 NB, RAMP

JCT I-5, Snohomish, WA

Built 1968 ADT: 8,180

I-5

Over: SR529,RR,EBEY SL,60TH PL

6.9 N JCT SR 529 SPUR, Snohomish, WA

Built 1969 ADT: 8,045

S-E RAMP

Over: SR 526 MAINLINE

2.2 E JCT SR 525, Snohomish, WA

Built 1969 ADT: 39,802

PED BEVERLY LANE

Over: SR 526

3.5 E JCT SR 525, Snohomish, WA

Built 1969 ADT: 58,767

EVERGREEN WAY

Over: SR 526

3.5 E JCT SR 525, Snohomish, WA

Built 1969 ADT: 58,767

200TH ST NE

Over: I-5

1.7 N JCT SR 531, Snohomish, WA

Built 1970 ADT: 91,766

STIMSON RD

Over: I-5

4.6 N JCT SR 528, Snohomish, WA

Built 1970 ADT: 109,515

N-W RAMP P1 18853

Over: I-5, SR 527, BROADWAY AV

5.4 N JCT SR 525, Snohomish, WA

Built 1970 ADT: 34,151

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

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