Washington County, OR

326 public highway bridges

Washington County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Washington County, Oregon contains 326 public highway bridges. Roughly 34% are rated “Good,” 47.5% “Fair,” and 2.1% “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.

326
Total Bridges
34%
Good
47.5%
Fair
2.1%
Poor Condition

Condition Distribution

Good
34% (111)
Fair
47.5% (155)
Poor
2.1% (7)

All Bridges (326)

HWY 144AW

Unknown

Over: HWY 144

2.8 MI NW TIGARD CC, Washington, OR

Built 1978 ADT: 97,468

HWY 144AY

Unknown

Over: HWY 144

2.8 MI NW TIGARD CC, Washington, OR

Built 1978 ADT: 97,468

SW MURRAY BLVD SB

Unknown

Over: BNRR & TERMAN ROAD

005 MI N HWY 8, Washington, OR

Built 1966 ADT: 1,000

OLD TV HWY #47

Fair

Over: CARPENTER CREEK

007 MI S FOREST GROVE, Washington, OR

Built 1953 Load: 11.0 t ADT: 1,230

REIN ROAD

Fair

Over: CEDAR CREEK

010 MI SOUTH HWY 99, Washington, OR

Built 1978 Load: 12.0 t ADT: 214

US 26 (HWY 047)

Fair

Over: Nehalem River

15.6 MI W OF HWY 37 JCT, Washington, OR

Built 1940 Load: 13.0 t ADT: 6,936

Fern Flat Rd.

Fair

Over: Roundy Creek

3.18 Mile N Snooseville C, Washington, OR

Built 2010 Load: 13.3 t ADT: 33

170TH AVE

Fair

Over: BEAVERTON CREEK

0055 MI N HWY-8, Washington, OR

Built 1969 Load: 13.6 t ADT: 18,596

BOHMANN PARKWAY

Fair

Over: FANNO CREEK

002 MI EAST OF 92ND AVE, Washington, OR

Built 1957 Load: 13.9 t ADT: 282

NICOL RD

Fair

Over: FANNO CREEK

003 MI S SCHOLLS FERRY RD, Washington, OR

Built 1962 Load: 14.3 t ADT: 3,115

SW 229th AVE

Fair

Over: BUTTERNUT CREEK

008 MI N ROSEDALE ROAD, Washington, OR

Built 1978 Load: 14.3 t ADT: 3,850

Hwy 029

Fair

Over: Dairy Creek

2.9 MI E FOREST GROVE, Washington, OR

Built 1923 Load: 14.6 t ADT: 28,205

PADGETT ROAD

Fair

Over: OVERFLOW MCKAY CREEK

0085 W CONNELL ST, Washington, OR

Built 1963 Load: 14.6 t ADT: 765

LOMBARD EXTENSION

Fair

Over: BEAVERTON CREEK

001 NORTH OF CANYON ROAD, Washington, OR

Built 1988 Load: 14.6 t ADT: 2,833

I-5 (HWY 001) CON

Fair

Over: BEAVER DAM CREEK

0.4 MI S OF TUALATIN R., Washington, OR

Built 1991 Load: 14.9 t ADT: 9,677

185TH AVE

Fair

Over: BUTTERNUT CREEK

001 MI W MADELINE STREET, Washington, OR

Built 1974 Load: 15.6 t ADT: 21,545

FERN FLAT ROAD

Fair

Over: EAST FORK DAIRY CREEK

013 MI N GREENER ROAD, Washington, OR

Built 1975 Load: 15.6 t ADT: 28

SW 86TH AVE

Fair

Over: FANNO CREEK

002 MI S SCHOLLS FERRY RD, Washington, OR

Built 1960 Load: 15.9 t ADT: 282

EVERS ROAD

Fair

Over: W.FK.DAIRY CR. O'FLOW

009 MI S REILING ROAD, Washington, OR

Built 1957 Load: 15.9 t ADT: 307

HWY 91 SB

Fair

Over: TUALATIN RIVER

0.5 MI S OF KING CITY CC, Washington, OR

Built 1929 Load: 16.2 t ADT: 13,883

OR 6 (Hwy 037)

Fair

Over: Gales Creek

13.0 MI W OF HWY 47 JCT, Washington, OR

Built 1956 Load: 16.2 t ADT: 4,731

OR 99W(HWY 001W)NB

Fair

Over: ROCK CREEK (ONION FLAT)

014 MI N SHERWOOD, Washington, OR

Built 1955 Load: 16.5 t ADT: 14,438

US 26 (HWY 047) WB

Fair

Over: PNWR & VADIS

17.0 MI W PORTLAND SWCL, Washington, OR

Built 1946 Load: 16.5 t ADT: 11,519

Hwy 29

Fair

Over: PNWR & Scoggin Creek

1.5 MI N GASTON PO, Washington, OR

Built 1967 Load: 16.5 t ADT: 10,615

HWY 91

Fair

Over: PNWR

AT TIGARD CC, Washington, OR

Built 1940 Load: 16.8 t ADT: 34,462

SW 92ND AVE

Fair

Over: FANNO CREEK

003 MI S SCHOLLS FERRY RD, Washington, OR

Built 1970 Load: 17.2 t ADT: 16,592

CORNELIUS PASS RD

Fair

Over: ROCK CREEK

007 MI N GERMANTOWN ROAD, Washington, OR

Built 1950 Load: 17.5 t ADT: 9,915

COCHRAN RD

Fair

Over: NEHALEM RIVER

029 MI W TIMBER ROAD JCT, Washington, OR

Built 1979 Load: 17.8 t ADT: 138

HWY 91

Fair

Over: FANNO CREEK

AT TIGARD CC, Washington, OR

Built 1940 Load: 18.1 t ADT: 34,462

TIGARD STREET

Fair

Over: FANNO CREEK

0005 WEST OF TIEDEMAN, Washington, OR

Built 1958 Load: 18.1 t ADT: 5,667

OR 99W(HWY 91)SB

Fair

Over: ROCK CREEK (ONION FLAT)

14 MI. N. OF SHERWOOD, Washington, OR

Built 1931 Load: 19.1 t ADT: 14,438

I-5 (HWY 001)

Fair

Over: P&W RR

1.1 MI N OF TUALATIN R., Washington, OR

Built 1975 Load: 19.1 t ADT: 135,007

OR 47 (Hwy 102)

Fair

Over: West Fork Dairy Creek

033 MI N FOREST GROVE, Washington, OR

Built 1937 Load: 19.1 t ADT: 6,860

US 26 (Hwy 047)

Fair

Over: W FK Dairy Creek

3.2 MI W HWY 47 JCT, Washington, OR

Built 1941 Load: 19.1 t ADT: 10,553

MOUNTAINDALE ROAD

Fair

Over: E FK DAIRY CREEK

010 MI N HWY 26, Washington, OR

Built 1992 Load: 19.1 t ADT: 2,066

NW DAIRY CREEK RD

Fair

Over: E FORK DAIRY CREEK

001 MI E FERN FLAT RD, Washington, OR

Built 1957 Load: 19.1 t ADT: 305

OLD TV HWY #47

Fair

Over: GASTON SLOUGH

010 W HWY #47, Washington, OR

Built 1934 Load: 19.1 t ADT: 568

I-5 (HWY 001)

Fair

Over: TUALATIN RIVER

AT TUALATIN RIVER, Washington, OR

Built 1975 Load: 19.8 t ADT: 139,488

OR 6 (Hwy 037)

Fair

Over: P&W & PTB

1.9 MI W OF HWY 47 JCT, Washington, OR

Built 1954 Load: 20.4 t ADT: 8,243

HOBBS RD

Fair

Over: COUNCIL CREEK

004 EAST SUSBAUER RD, Washington, OR

Built 1955 Load: 20.4 t ADT: 336

OLD TV HWY #47

Fair

Over: TUALATIN RIVER OVERFLOW

0025 MI W TUALATIN RIVER, Washington, OR

Built 1934 Load: 20.4 t ADT: 576

JARREL ROAD

Fair

Over: JACKSON CREEK

005 MI E MASON HILL RD, Washington, OR

Built 1976 Load: 20.7 t ADT: 106

US 26 (HWY 047) EB

Fair

Over: Mckay Creek

16.6 MI W of Portland CC, Washington, OR

Built 1968 Load: 21.1 t ADT: 18,378

MINTER BRIDGE ROAD

Fair

Over: DAVIS CREEK

002 MI N BURKHALTER, Washington, OR

Built 1959 Load: 21.1 t ADT: 382

REILING RD

Fair

Over: SMALL STREAM

009 MI E HWY 47, Washington, OR

Built 1960 Load: 21.1 t ADT: 77

ROY ROAD

Fair

Over: E FK DAIRY CR OFLOW

023 MI E HWY 47, Washington, OR

Built 1960 Load: 21.1 t ADT: 1,275

FISHER ROAD

Fair

Over: WEST FORK DAIRY CREEK

007 MI S SUNSET HWY, Washington, OR

Built 1977 Load: 21.1 t ADT: 224

OR 6 (Hwy 037)

Fair

Over: Gales Creek

14.0 MI W HWY 47 JCT, Washington, OR

Built 1956 Load: 21.4 t ADT: 5,608

SW 185TH AVE

Fair

Over: BEAVERTON CREEK

0061 MI S BASELINE RD, Washington, OR

Built 1987 Load: 21.4 t ADT: 28,780

MILLIKAN WAY

Fair

Over: BEAVERTON CREEK

002 N TUALATIN VALLEY HWY, Washington, OR

Built 1984 Load: 21.4 t ADT: 7,083
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.