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)

JACKSON HWY

Good

Over: BRANCH LACAMAS CR.

2.49 S JCT US 12, Lewis, WA

Built 1926 Load: 13.6 t ADT: 985

JACKSON HWY

Good

Over: LACAMAS CR.

2.72 S JCT US 12, Lewis, WA

Built 1926 Load: 13.6 t ADT: 985

JACKSON HWY

Good

Over: LACAMAS CR.

2.76 S JCT US 12, Lewis, WA

Built 1926 Load: 13.6 t ADT: 936

SR 505

Good

Over: SALMON CREEK

13.5 E JCT I-5, Lewis, WA

Built 1951 Load: 15.2 t ADT: 584

US 12

Good

Over: SMITH CR

12.9 E JCT SR 131, Lewis, WA

Built 1962 Load: 16.2 t ADT: 2,593

FAS 1027

Good

Over: BN RR TOWER AVE NORTHUP

00.0 S JCT. CHESTNU, Lewis, WA

Built 1971 Load: 16.3 t ADT: 5,740

FAS 1027

Good

Over: BN RR, GOLD ST,NORTHUP S

00.0 N JCT. SUMMA S, Lewis, WA

Built 1971 Load: 16.3 t ADT: 5,843

SR 508

Good

Over: CINEBAR CREEK

19.5 E JCT I-5, Lewis, WA

Built 1946 Load: 17.5 t ADT: 1,171

STEVENS CANYON ROA

Good

Over: RAVINE

12.1 MI. W. OF JCT. HWY., Lewis, WA

Built 1955 Load: 18.1 t ADT: 1,500

PANISCO ROAD

Good

Over: MILL CREEK

9.0 E ONALASKA, Lewis, WA

Built 1973 Load: 19.0 t ADT: 45

HENRIOT ROAD

Good

Over: LACAMAS CREEK

3.5 N TOLEDO, Lewis, WA

Built 1975 Load: 19.0 t ADT: 304

FAIR ST EXTENSION

Good

Over: SALZER CREEK

E. C/L CENTRALIA, Lewis, WA

Built 1971 Load: 19.0 t ADT: 66

US 12

Good

Over: LACAMAS CREEK

6.7 E JCT I-5, Lewis, WA

Built 1921 Load: 19.8 t ADT: 10,017

SR 122

Good

Over: TILTON RIVER

3.6 E JCT US 12, Lewis, WA

Built 1961 Load: 20.0 t ADT: 739

INDEPENDENCE ROAD

Good

Over: INDEPENDENCE CREEK

0.23 N JCT 10000, Lewis, WA

Built 1956 Load: 20.0 t ADT: 523

US 12

Good

Over: LUNCH CREEK

9.4 E JCT SR 7, Lewis, WA

Built 1924 Load: 20.4 t ADT: 4,752

US 12

Good

Over: HALL CREEK

14.0 E JCT SR 131, Lewis, WA

Built 1928 Load: 20.4 t ADT: 2,593

US 12

Good

Over: DAVIS CREEK

6.8 E JCT SR 131, Lewis, WA

Built 1957 Load: 20.7 t ADT: 2,648

FRASE RD.

Good

Over: KEARNEY CR.

0.22 S JCT. SR.508, Lewis, WA

Built 1967 Load: 21.8 t ADT: 4

SR 122

Good

Over: COWLITZ RIVER

6.6 E JCT US 12, Lewis, WA

Built 1961 Load: 22.7 t ADT: 777

GOODRICH ROAD

Good

Over: CHEHALIS SLOUGH

1.0 N CENTRALIA, Lewis, WA

Built 1961 Load: 22.7 t ADT: 180

CARR ROAD

Good

Over: CARR CREEK

2.74 MILES S. US HWY 12, Lewis, WA

Built 2009 Load: 22.7 t ADT: 10

PLEASANT VALLEY RD

Good

Over: UNNAMED TRIBUTARY

2.5 NW JCT SR 7, Lewis, WA

Built 2017 Load: 23.7 t ADT: 13

US 12

Good

Over: COWLITZ R OVERFLOW

8.5 E JCT SR 131, Lewis, WA

Built 1958 Load: 24.0 t ADT: 2,648

GARRARD CREEK RD.

Good

Over: INDEPENDENCE CREEK

0.23 W JCT 91008, Lewis, WA

Built 1965 Load: 24.5 t ADT: 192

HAYWIRE ROAD

Good

Over: STEARNS CREEK

2.65 West Of Napavine, Lewis, WA

Built 1940 Load: 24.5 t ADT: 238

BISHOP ROAD

Good

Over: DILLENBAUGH CREEK

1.11 SW CHEHALIS, Lewis, WA

Built 1955 Load: 24.5 t ADT: 3,654

NO DATA ENTERED

Good

Over: BUTTER CREEK

4.2 MILES NW FROM HWY12 O, Lewis, WA

Built 1963 Load: 25.4 t ADT: 8

ALVORD ROAD

Good

Over: SALZER CREEK

0.5 E CENTRALIA, Lewis, WA

Built 1964 Load: 25.4 t ADT: 25

W. Maple St

Good

Over: China Creek

W.of Tower Ave, Lewis, WA

Built 2003 Load: 25.4 t ADT: 1,414

US 12

Good

Over: KIONA CREEK

12.9 E JCT SR 7, Lewis, WA

Built 1925 Load: 26.2 t ADT: 4,752

ELK CREEK RD

Good

Over: EIGHT CR.

3.W OF DOTY, Lewis, WA

Built 1983 Load: 26.3 t ADT: 95

STEVENS CANYON ROA

Good

Over: RAVINE

12.1 MILES WEST OF JCT. U, Lewis, WA

Built 1955 Load: 26.3 t ADT: 1,500

SR 12

Good

Over: HOPKIN CREEK

5.5 E JCT SR 131, Lewis, WA

Built 1958 Load: 26.6 t ADT: 2,648

CHANDLER ROAD

Good

Over: DUNN CREEK

1.0 N DRYAD, Lewis, WA

Built 1962 Load: 27.2 t ADT: 69

PETERS RD.

Good

Over: PETERS CR.

0.26 S JCT SR 12, Lewis, WA

Built 1964 Load: 27.2 t ADT: 192

PETERS RD.

Good

Over: PETERS CR.

0.73 S JCT SR 12, Lewis, WA

Built 1964 Load: 27.2 t ADT: 244

SR 131

Good

Over: SILER CREEK

0.4 N JCT NAT'L FOREST BD, Lewis, WA

Built 1965 Load: 28.2 t ADT: 305

MIDDLE FORK ROAD

Good

Over: MIDDLE FORK NEWAUKUM

2.5 N JCT SR 508, Lewis, WA

Built 2019 Load: 28.2 t ADT: 482

BRIM CREEK ROAD

Good

Over: STILLWATER CREEK

2.0 W VADER, Lewis, WA

Built 1960 Load: 29.0 t ADT: 95

ROUNDTOP ROAD

Good

Over: ROUND TOP CREEK

1.0 SW MINERAL, Lewis, WA

Built 1989 Load: 29.0 t ADT: 18

US 12

Good

Over: KLICKITAT CREEK

4.0 E JCT SR 122, Lewis, WA

Built 1937 Load: 29.9 t ADT: 6,490

MARSH AVENUE

Good

Over: CHINA CREEK

00.1 N JCT. SR507, Lewis, WA

Built 1994 Load: 30.1 t ADT: 553

SR 508

Good

Over: GHEER CREEK

7.6 E JCT I-5, Lewis, WA

Built 1947 Load: 30.8 t ADT: 4,269

PLEASANT VALLEY RD

Good

Over: STEARNS CREEK

3.0 SW.NAPAVINE, Lewis, WA

Built 1982 Load: 30.8 t ADT: 407

SR 6

Good

Over: JONES CREEK

5.7 E PACIFIC CO, Lewis, WA

Built 1931 Load: 31.1 t ADT: 2,463

US 12

Good

Over: CREEK TWIN CANYON

2.6 E JCT SR 122, Lewis, WA

Built 1967 Load: 31.7 t ADT: 4,729

STOWELL ROAD

Good

Over: MILL CREEK

0.5 N SALKUM, Lewis, WA

Built 1955 Load: 31.7 t ADT: 325

SCHEUBER ROAD

Good

Over: ALEXANDER CR.

1.7 N JCT SR 6, Lewis, WA

Built 1978 Load: 31.7 t ADT: 888

MASCHKE ROAD

Good

Over: STILLWATER CREEK

1.0 W VADER, Lewis, WA

Built 1974 Load: 31.7 t ADT: 37

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.