Whatcom County, WA

358 public highway bridges

Whatcom County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Whatcom County, Washington contains 358 public highway bridges. Roughly 38.3% are rated “Good,” 46.6% “Fair,” and 5.3% “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.

358
Total Bridges
38.3%
Good
46.6%
Fair
5.3%
Poor Condition

Condition Distribution

Good
38.3% (137)
Fair
46.6% (167)
Poor
5.3% (19)

All Bridges (358)

NOON RD

Good

Over: TEN MILE CREEK

01.1 N E. SMITH ROAD, Whatcom, WA

Built 2012 Load: 45.4 t ADT: 645

WICKERSHAM RD

Good

Over: SAMISH RIVER

00.4 E of Valley HWY, Whatcom, WA

Built 1998 Load: 45.7 t ADT: 159

HEMMI RD W

Good

Over: TEN MILE CR

00.3 E. ALDRICH RD., Whatcom, WA

Built 1986 Load: 46.3 t ADT: 441

MAIN ST

Good

Over: PEPIN CREEK

100' WEST OF DAHLIA ST, Whatcom, WA

Built 2022 Load: 46.3 t ADT: 6,100

FROST RD

Good

Over: SAAR CREEK

0.5 N SOUTH PASS ROAD, Whatcom, WA

Built 2004 Load: 46.7 t ADT: 118

LAKE WHATCOM BLVD

Good

Over: AUSTIN CREEK

00.2 LK LOUISE ROAD, Whatcom, WA

Built 2004 Load: 47.6 t ADT: 5,495

SR 542

Good

Over: OVERFLOW CHANNEL

9.9 E JCT I-5, Whatcom, WA

Built 1999 Load: 48.1 t ADT: 11,016

BAKER LK RD

Good

Over: SULPHUR CR

2.05 N SKAGIT LINE, Whatcom, WA

Built 2010 Load: 48.1 t ADT: 916

JAMES STREET

Good

Over: SQUALICUM CREEK

1 MI. N. OF SUNSET, Whatcom, WA

Built 2015 Load: 48.9 t ADT: 11,500

SR 539

Good

Over: FISHTRAP CREEK

2.7 N JCT SR 544, Whatcom, WA

Built 2008 Load: 49.0 t ADT: 16,600

MAIN STREET

Good

Over: FISHTRAP CREEK

0.2 W THIRD STREET, Whatcom, WA

Built 2014 Load: 49.0 t ADT: 6,039

SR 542

Good

Over: BOULDER CR

5.5 E JCT SR 547, Whatcom, WA

Built 2007 Load: 49.9 t ADT: 1,903

SR 539

Good

Over: TEN MILE CREEK

5.8 N JCT I-5, Whatcom, WA

Built 2008 Load: 50.8 t ADT: 19,199

SR 539

Good

Over: FOUR MILE CREEK

5.9 N JCT I-5, Whatcom, WA

Built 2008 Load: 50.8 t ADT: 19,199

SR 542

Good

Over: NOOKSACK TRIBUTARY

1.5 E JCT SR 9, Whatcom, WA

Built 2010 Load: 50.8 t ADT: 5,182

HANNEGAN RD

Good

Over: FOUR MILE CREEK

00.2 S BEARD RD., Whatcom, WA

Built 1954 Load: 50.8 t ADT: 9,411

SOUTH PASS RD

Good

Over: SAAR CREEK

01.3 SW KENDALL RD, Whatcom, WA

Built 2016 Load: 51.2 t ADT: 867

ROBERTS RD

Good

Over: ANDERSON CR

0.2 N of Goshen Road, Whatcom, WA

Built 2019 Load: 51.2 t ADT: 150

BRUCE RD

Good

Over: CALIFORNIA CR

00.2 N. BAY RD., Whatcom, WA

Built 1923 Load: 52.6 t ADT: 643

SR 542

Good

Over: HIGH CREEK

2.0 E JCT SR 547, Whatcom, WA

Built 2016 Load: 53.5 t ADT: 2,961

INNIS CREEK RD

Good

Over: INNIS CREEK

WEST HWY 9, Whatcom, WA

Built 2007 Load: 53.5 t ADT: 110

ROAD

Good

Over: SWAMP CREEK

NO DATA ENTERED, Whatcom, WA

Built 1984 Load: 53.6 t ADT: 80

SR 548

Good

Over: TERRELL CREEK

4.7 W JCT I-5, Whatcom, WA

Built 2011 Load: 54.4 t ADT: 5,048

ROAD

Good

Over: PARK CREEK

NO DATA ENTERED, Whatcom, WA

Built 1981 Load: 54.5 t ADT: 382

HANNEGAN RD

Good

Over: TEN MILE CREEK

0.2 N TEN MILE ROAD, Whatcom, WA

Built 2018 Load: 54.8 t ADT: 11,198

SR 9

Good

Over: BLACK SLOUGH

9.7 N SKAGIT CO, Whatcom, WA

Built 1952 Load: 55.3 t ADT: 3,307

NO DATA ENTERED

Good

Over: CANYON CREEK

MP 1.1 SINCE 1990, Whatcom, WA

Built 2007 Load: 55.4 t ADT: 50

VALENCIA STREET

Good

Over: WHATCOM CREEK

0.21 N JCT FRASER ST, Whatcom, WA

Built 2000 Load: 57.0 t ADT: 500

I-5

Good

Over: PADDEN CREEK

7.6 N SKAGIT CO, Whatcom, WA

Built 2021 Load: 60.3 t ADT: 21,720

ROAD #39

Good

Over: FALLS CREEK

5.4 MILES FROM SH #542, Whatcom, WA

Built 1996 Load: 60.8 t ADT: 20

I-5

Good

Over: PADDEN CREEK

7.6 N SKAGIT CO, Whatcom, WA

Built 2021 Load: 60.9 t ADT: 21,720

SR 9

Good

Over: TAWES CREEK

11.0 N SKAGIT CO, Whatcom, WA

Built 2019 Load: 62.2 t ADT: 3,307

SR 542

Good

Over: ANDERSON CREEK

6.5 E JCT I-5, Whatcom, WA

Built 2015 Load: 64.2 t ADT: 8,070

ROAD #39

Good

Over: GROUSE CREEK

7.9 MILES FROM SH #542, Whatcom, WA

Built 1996 Load: 64.5 t ADT: 20

SUNRISE RD

Good

Over: DAKOTA CR

00.4 N. JESS ROAD, Whatcom, WA

Built 2005 Load: 67.1 t ADT: 1,149

SUNRISE RD

Good

Over: S FORK DAKOTA CR

00.2 N. JESS ROAD, Whatcom, WA

Built 2005 Load: 67.1 t ADT: 1,149

LOOMIS TRAIL RD

Good

Over: DAKOTA CR

00.3 E SUNRISE ROAD, Whatcom, WA

Built 2006 Load: 78.9 t ADT: 604

SOUTH BAY DR

Good

Over: BRANNIAN CREEK

01.0 SW BLUE CANYON, Whatcom, WA

Built 2008 Load: 78.9 t ADT: 542

SR 9

Good

Over: LAKE WHATCOM RY

1.0 N SKAGIT CO, Whatcom, WA

Built 1989 Load: 89.8 t ADT: 2,122

MARTIN RD

Poor

Over: ANDERSON CR

00.2 E. ROBERTS RD, Whatcom, WA

Built 1958 Load: 6.3 t ADT: 80

LAKE SAMISH DR N

Poor

Over: LAKE SAMISH

S END N LK SAMISH, Whatcom, WA

Built 1953 Load: 9.1 t ADT: 955

JACKSON RD

Poor

Over: TERRELL CR

S OF BIRCH BAY DR., Whatcom, WA

Built 1975 Load: 14.6 t ADT: 1,037

GOSHEN RD

Poor

Over: ANDERSON CR

00.4 W. SAND RD, Whatcom, WA

Built 1973 Load: 18.5 t ADT: 1,114

MARINE DR

Poor

Over: ACCESS RD CREEK OLD RR

0.3 S BENNETT DR., Whatcom, WA

Built 1933 Load: 18.8 t ADT: 7,694

NB SR 539

Poor

Over: NOOKSACK R

2.0 N JCT SR 544, Whatcom, WA

Built 1950 Load: 20.0 t ADT: 8,300

SR 547

Poor

Over: SAAR CREEK

8.8 N JCT SR 542, Whatcom, WA

Built 1970 Load: 20.1 t ADT: 1,485

MARINE DR

Poor

Over: G.N. RR

00.2 E WYNN RD, Whatcom, WA

Built 1940 Load: 20.1 t ADT: 5,805

SR 542

Poor

Over: BELL CREEK

3.1 E JCT SR 9, Whatcom, WA

Built 1951 Load: 20.9 t ADT: 5,182

SR 542

Poor

Over: CORNELL CREEK

9.7 E JCT SR 547, Whatcom, WA

Built 1931 Load: 22.4 t ADT: 1,903

SR 542

Poor

Over: BAGLEY CREEK

26.3 E JCT SR 547, Whatcom, WA

Built 1946 Load: 22.7 t ADT: 621

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.