Lewis County, WA

422 public highway bridges

Lewis County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lewis County, Washington contains 422 public highway bridges. Roughly 37.4% are rated “Good,” 54.5% “Fair,” and 3.3% “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.

422
Total Bridges
37.4%
Good
54.5%
Fair
3.3%
Poor Condition

Condition Distribution

Good
37.4% (158)
Fair
54.5% (230)
Poor
3.3% (14)

All Bridges (422)

FAS 1198

Good

Over: BNRR WARD STREET

00.0 JCT. W B ST., Lewis, WA

Built 1980 Load: 31.7 t ADT: 3,993

NO DATA ENTERED

Good

Over: LITTLE NISQUALLY RIVER

12.4 MILES WEST OF HWY 7, Lewis, WA

Built 1971 Load: 31.8 t ADT: 30

SR 6

Good

Over: ROCK CREEK

1.5 E PACIFIC CO, Lewis, WA

Built 2015 Load: 32.1 t ADT: 1,561

NO DATA ENTERED

Good

Over: WOODS CREEK #2

NO DATA ENTERED, Lewis, WA

Built 2019 Load: 32.4 t ADT: 99

2350RD

Good

Over: WOODS CREEK #3

NO DATA ENTERED, Lewis, WA

Built 2019 Load: 32.4 t ADT: 99

NO DATA ENTERED

Good

Over: CAMP CREEK

SE on 23RD from CVRD, Lewis, WA

Built 2022 Load: 32.4 t ADT: 375

COUSINS ROAD

Good

Over: UNNAMED TRIBUTARY

3.8 S SR6, Lewis, WA

Built 2021 Load: 32.4 t ADT: 168

US 12

Good

Over: COWLITZ R OVERFLOW

8.1 E JCT SR 131, Lewis, WA

Built 1958 Load: 32.7 t ADT: 2,648

US 12

Good

Over: COWLITZ RIVER

1.8 E JCT SR 122, Lewis, WA

Built 1961 Load: 32.7 t ADT: 6,630

SR 507

Good

Over: SKOOKUMCHUCK RIVER

4.5 N JCT I-5, Lewis, WA

Built 1978 Load: 32.7 t ADT: 3,828

I-5 NBCD

Good

Over: SKOOKUMCHUCK RIVER

0.7 N JCT SR 507, Lewis, WA

Built 2013 Load: 32.7 t ADT: 13,670

I-5

Good

Over: DILLENBAUGH CREEK

3.8 N JCT SR 508, Lewis, WA

Built 1965 Load: 32.7 t ADT: 59,955

NO DATA ENTERED

Good

Over: SUMMIT CREEK

0.4 MILE NORTH OF HWY 12, Lewis, WA

Built 1965 Load: 32.7 t ADT: 20

RIFFE ROAD

Good

Over: PUD TAILRACE

0.5 SW PACKWOOD, Lewis, WA

Built 1962 Load: 32.7 t ADT: 6

HAYWIRE ROAD

Good

Over: STEARNS CREEK

2.5 W NAPAVINE, Lewis, WA

Built 1963 Load: 32.7 t ADT: 168

HARRISON AVE

Good

Over: SKOOKUMCHUCK RIVER

00.0 JCT. W FIRST S, Lewis, WA

Built 1968 Load: 32.7 t ADT: 22,996

Alley

Good

Over: China Creek

0.1 WEST OF ROCK ST, Lewis, WA

Built 2011 Load: 32.7 t ADT: 28

SR 505

Good

Over: LACAMAS CREEK

0.5 E JCT I-5, Lewis, WA

Built 1955 Load: 33.4 t ADT: 3,773

SNYDER ROAD

Good

Over: HALL CREEK

0.2 E HWY 12, Lewis, WA

Built 2020 Load: 33.4 t ADT: 212

SR 508

Good

Over: BEAR CANYON CREEK

21.4 E JCT I-5, Lewis, WA

Built 1983 Load: 33.6 t ADT: 1,171

SR 505

Good

Over: COWLITZ RIVER

3.8 E JCT I-5, Lewis, WA

Built 1994 Load: 33.6 t ADT: 3,842

ALLEY

Good

Over: China Creek

SW alley Maple/Pearl, Lewis, WA

Built 1946 Load: 33.6 t ADT: 10

US 12

Good

Over: LAKE CR

0.3 E JCT SR 7, Lewis, WA

Built 1952 Load: 34.5 t ADT: 4,992

SR 508

Good

Over: S FORK NEWAUKUM RIVER

2.6 E JCT I-5, Lewis, WA

Built 1989 Load: 34.5 t ADT: 4,269

LOST VALLEY ROAD

Good

Over: STILLMAN CREEK

0.3 W BOISTFORT, Lewis, WA

Built 1995 Load: 34.5 t ADT: 157

NORTH MILITARY RD.

Good

Over: OLEQUA CREEK

4.55 N JCT SR 505, Lewis, WA

Built 1995 Load: 34.5 t ADT: 2,252

SARGENT ROAD

Good

Over: OLEQUA CREEK

2.0 SE EVELINE, Lewis, WA

Built 1972 Load: 34.5 t ADT: 621

BUNKER ROAD

Good

Over: BUNKER CREEK

10.0 NW ADNA, Lewis, WA

Built 1955 Load: 34.5 t ADT: 24

TELEGRAPH ROAD

Good

Over: BEAR CREEK

3.0 SW TOLEDO, Lewis, WA

Built 1965 Load: 34.5 t ADT: 122

4600000

Good

Over: LAVA CREEK

7.39 MILES DOWN #46RD, Lewis, WA

Built 2020 Load: 35.3 t ADT: 50

SR 506

Good

Over: STILLWATER CR

3.7 E COWLITZ CO, Lewis, WA

Built 1963 Load: 35.4 t ADT: 972

SR 505

Good

Over: MILL CREEK

1.3 E JCT I-5, Lewis, WA

Built 1984 Load: 35.4 t ADT: 3,690

ANTRIM ROAD

Good

Over: OLEQUA CREEK

0.5 SE EVELINE, Lewis, WA

Built 1958 Load: 35.4 t ADT: 261

HYPPA ROAD

Good

Over: INDEPENDENCE CREEK

0.01 E.JCT.10024, Lewis, WA

Built 1968 Load: 35.4 t ADT: 23

JYLHA ROAD

Good

Over: INDEPENDENCE CREEK

13.0 W CENTRALIA, Lewis, WA

Built 1971 Load: 35.4 t ADT: 56

GARRARD CREEK RD

Good

Over: INDEPENDENCE CREEK

0.07 W.JCT.91008, Lewis, WA

Built 1968 Load: 35.4 t ADT: 219

MAYS BRIDGE ROAD

Good

Over: CHEHALIS RIVER

NORTH OF SR 6 MP 37.20, Lewis, WA

Built 2015 Load: 35.6 t ADT: 302

US 12

Good

Over: RAINEY CREEK OVERFLOW

10.1 E JCT SR 7, Lewis, WA

Built 1957 Load: 36.3 t ADT: 4,752

NO DATA ENTERED

Good

Over: NORTH FORK TILTON RIVER

3.8 MILES NW OF JCT. HWY, Lewis, WA

Built 1983 Load: 36.3 t ADT: 70

LITTLE HANAFORD

Good

Over: S FK HANAFORD CREEK

2.0 W KOPIAH, Lewis, WA

Built 1957 Load: 36.3 t ADT: 137

WILDWOOD ROAD

Good

Over: BLACK CREEK

2.99 NW SR 506, Lewis, WA

Built 2013 Load: 36.3 t ADT: 170

W. Maple St

Good

Over: China Creek

W. of Hwy 507 (Tower Ave), Lewis, WA

Built 1941 Load: 36.3 t ADT: 1,504

SR 7

Good

Over: NISQUALLY R OVERFLOW

16.1 N JCT SR 508, Lewis, WA

Built 1945 Load: 37.2 t ADT: 2,818

GARRARD CREEK RD.

Good

Over: S.FORK GARRARD CREEK

5.10 NW.JCT.91008, Lewis, WA

Built 1972 Load: 37.2 t ADT: 175

COOK ROAD

Good

Over: LAKE CREEK

2.0 SE CURTIS, Lewis, WA

Built 1994 Load: 37.2 t ADT: 25

SR 508

Good

Over: S FORK NEWAUKUM RIVER

13.7 E JCT I-5, Lewis, WA

Built 2018 Load: 37.3 t ADT: 1,672

COMA ROAD

Good

Over: BRIM CREEK

2.0 W VADER, Lewis, WA

Built 1960 Load: 38.1 t ADT: 66

CHANDLER ROAD

Good

Over: CHEHALIS RIVER

1.O E DOTY, Lewis, WA

Built 2010 Load: 38.1 t ADT: 500

I-5

Good

Over: RR & REYNOLDS RD.

1.6 N JCT SR 507, Lewis, WA

Built 2013 Load: 38.2 t ADT: 34,801

SR 6

Good

Over: ROCK CREEK

1.9 E PACIFIC CO, Lewis, WA

Built 2015 Load: 38.2 t ADT: 1,561

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.