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)

NO DATA ENTERED

Good

Over: ORR CREEK

NO DATA ENTERED, Lewis, WA

Built 1985 Load: 73.5 t ADT: 50

THIRD STREET

Good

Over: STOWE CREEK

2.5 BLKS S SR 6, Lewis, WA

Built 1994 Load: 74.2 t ADT: 600

SR 6

Good

Over: FRONIA CREEK

6.5 E PACIFIC CO, Lewis, WA

Built 2019 Load: 79.4 t ADT: 2,463

SB I-5 RAMP

Good

Over: DILLENBAUGH CREEK

3.8 N JCT SR 508, Lewis, WA

Built 2009 Load: 84.4 t ADT: 2,702

ANNONEN RD

Good

Over: OLEQUA CK

1.0 n vader, Lewis, WA

Built 2002 Load: 86.2 t ADT: 47

SR 123

Good

Over: SUMMIT CRK

0.6 N JCT US 12, Lewis, WA

Built 1986 Load: 89.8 t ADT: 1,074

PATTEE ROAD

Good

Over: BERWICK CREEK

5 W CHEHALIS, Lewis, WA

Built 2007 Load: 89.8 t ADT: 52

STEVENS CANYON ROA

Good

Over: NICKEL CREEK

9.8 MILES WEST OF JCT. U., Lewis, WA

Built 1952 Load: 99.9 t ADT: 1,375

NFSR 7003000

Poor

Over: EAGLE CREEK

ROAD 70 OFF HWY 7, Lewis, WA

Built 1970 ADT: 50

NFSR 7003000

Poor

Over: WEST FORK TILTON

TAKE ROAD 70 OFF HWY 7, Lewis, WA

Built 1970 ADT: 50

CERES HILL ROAD

Poor

Over: CHEHALIS RIVER

6.0 W ADNA, Lewis, WA

Built 1948 Load: 8.1 t ADT: 144

CHAMBER WAY

Poor

Over: BN RR & N NAT'L AVE

0.1 E OF INTERSTATE 5, Lewis, WA

Built 1952 Load: 12.7 t ADT: 13,223

DAVISON RD.

Poor

Over: TILTON RIVER

1.75 W MORTON, Lewis, WA

Built 1924 Load: 13.6 t ADT: 117

SR 7

Poor

Over: S FK TILTON RIVER

2.8 N JCT SR 508, Lewis, WA

Built 1938 Load: 16.5 t ADT: 2,576

SR 7

Poor

Over: ABANDONED RAILROAD

2.0 N JCT SR 508, Lewis, WA

Built 1944 Load: 17.8 t ADT: 2,576

I-5

Poor

Over: LACAMAS CR, DREWS PR RD

0.4 N JCT SR 506, Lewis, WA

Built 1953 Load: 17.8 t ADT: 41,665

US 12

Poor

Over: PURCELL CREEK

22.2 E JCT SR 131, Lewis, WA

Built 1971 Load: 21.1 t ADT: 2,360

SR 507

Poor

Over: SKOOKUMCHUCK RIVER

2.4 N JCT I-5, Lewis, WA

Built 1928 Load: 22.7 t ADT: 8,699

US 12

Poor

Over: COAL CREEK

20.2 E JCT SR 131, Lewis, WA

Built 1930 Load: 27.2 t ADT: 2,401

STEVENS CANYON ROA

Poor

Over: RAVINE

5.5 miles southwest of jc, Lewis, WA

Built 1952 Load: 31.7 t ADT: 1,375

SR 7

Poor

Over: TILTON RIVER

4.1 N JCT SR 508, Lewis, WA

Built 1931 Load: 36.3 t ADT: 2,307

US 12

Poor

Over: CLEAR FK OF COWLITZ R

23.1 E JCT SR 131, Lewis, WA

Built 1972 Load: 51.7 t ADT: 2,360

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.