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)

US 26 (Hwy 047)

Good

Over: Rock Creek

11.1 MI W OF PORTLAND CC, Washington, OR

Built 2017 Load: 56.4 t ADT: 100,225

SW Teton Ave

Good

Over: Hedges Creek

0.35 N SW Tual-Sher Rd., Washington, OR

Built 1997 Load: 57.7 t ADT: 567

SW Johnson Sch Rd

Good

Over: Davis Creek

0055 MI N SIMPSON ROAD, Washington, OR

Built 2016 Load: 58.0 t ADT: 590

COLLINS ROAD

Good

Over: MCKAY CREEK

025 MI NW SHADYBROOK, Washington, OR

Built 1997 Load: 58.1 t ADT: 231

OR 6 (Hwy 037)

Good

Over: Bateman Creek

10.77 MI W HWY 47 JCT, Washington, OR

Built 2006 Load: 60.3 t ADT: 5,349

OREGON ST.

Good

Over: ROCK CREEK

OR ST AND ROCK CR, Washington, OR

Built 2001 Load: 66.7 t ADT: 214

198TH AVE

Good

Over: CELEBRITY CREEK

MP 0.93, Washington, OR

Built 2020 Load: 68.0 t ADT: 11,176

Wilshire St

Good

Over: Tri-Met LRT

Wilshire 0.1m S of 047, Washington, OR

Built 1994 Load: 69.0 t ADT: 88,423

OR 217

Good

Over: Tri-Met LRT

OR 217 at MP 0.92, Washington, OR

Built 1994 Load: 69.0 t ADT: 93,867

SW HORIZON BLVD

Good

Over: CREEK

HORIZON CROSSING, Washington, OR

Built 2004 Load: 69.0 t ADT: 3,275

SW Hocken Ave.

Good

Over: BEAVERTON CREEK

0.46 MI from Farmington, Washington, OR

Built 2016 Load: 69.0 t ADT: 7,083

SW Myslony St.

Good

Over: Hedges Creek

Sw Myslony St. MP 0.46, Washington, OR

Built 2018 Load: 69.0 t ADT: 218

OR 47 (Hwy 102)

Good

Over: West Fork Dairy Creek

0.5 MI N BANKS, Washington, OR

Built 2022 Load: 69.0 t ADT: 3,372

198TH AVE

Good

Over: BUTTERNUT CREEK

003 MI N BUTTERNUT ST, Washington, OR

Built 2020 Load: 69.0 t ADT: 11,176

BARNES RD

Good

Over: JOHNSON CREEK

MP 3.04, Washington, OR

Built 1995 Load: 69.0 t ADT: 20,157

NW Lauren Ave.

Good

Over: Unnamed Channel

MP 0.03, Washington, OR

Built 2021 Load: 69.0 t ADT: 100

SW TONKA ROAD

Good

Over: NYBERG CREEK

001 E BOONES FERRY ROAD, Washington, OR

Built 1985 Load: 69.0 t ADT: 567

BASELINE RD

Good

Over: BEAVERTON CREEK

002 MI E 231ST AVE, Washington, OR

Built 2005 Load: 69.6 t ADT: 18,329

BASELINE RD

Good

Over: ROCK CREEK

001 MI E 231ST AVE, Washington, OR

Built 2005 Load: 81.6 t ADT: 16,198

SOUTH ROAD

Poor

Over: TUALATIN RIVER

01.8 MI W MT RICHMOND RD, Washington, OR

Built 1974 Load: 5.2 t ADT: 72

NORTH DAKOTA ST

Poor

Over: FANNO CREEK

0010 W GREENBURG RD, Washington, OR

Built 1962 Load: 16.5 t ADT: 6,925

US 26 (HWY 047)

Poor

Over: West Fork Dairy Creek

8.1 MI W HWY 37 JCT, Washington, OR

Built 1940 Load: 16.8 t ADT: 11,148

TURK ROAD

Poor

Over: WEST FORK DAIRY CREEK

001 MI N SELL ROAD, Washington, OR

Built 1961 Load: 17.2 t ADT: 208

SW 205TH AVE

Poor

Over: BEAVERTON CREEK

004 MI N BASELINE RD, Washington, OR

Built 1960 Load: 18.8 t ADT: 14,741

UEBEL ROAD

Poor

Over: E FORK DAIRY CREEK

0005 MI W OF PUMPKIN RIDG, Washington, OR

Built 1973 Load: 21.1 t ADT: 1,202

GREENVILLE ROAD

Poor

Over: DAIRY CREEK

014 MI W HWY 47, Washington, OR

Built 1964 Load: 27.2 t ADT: 914

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.