Washington County, OR

326 public highway bridges

Washington County Bridge Snapshot

Washington County, Oregon contains 326 public highway bridges in the FHWA National Bridge Inventory. Roughly 34% are rated “Good,” 47.5% “Fair,” 2.1% “Poor,” and 2.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in OR are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

326

Total Bridges

34%

Good

2.1%

Poor

2.1%

Structurally Deficient

Condition Distribution

Good

34% (111)

Fair

47.5% (155)

Poor

2.1% (7)

SD

2.1% (7)

All Bridges (326)

Sort:

US 26 (Hwy 047)

Over: Hwy 102 Davies/PTB

4.0 MI W HWY 37 JCT, Washington, OR

Built 1941 ADT: 1,544

DERSHAM RD

Over: HWY 47 US 26

19.3 MI W OF PORTLAND CC, Washington, OR

Built 1971 ADT: 23,039

Cornelius Pass Rd

Over: Hwy 47 (US 26)

11.9 MI W OF PORTLAND CC, Washington, OR

Built 1988 ADT: 76,011

US 26 (HWY 047)

Over: HWY 144

5.3 MI W OF PORTLAND CC, Washington, OR

Built 1986 ADT: 88,423

NORWOOD ROAD

Over: PACIFIC HWY 1 (I-5)

2.4 MI S OF TUALATIN R., Washington, OR

Built 1969 ADT: 127,240

HWY 141

Over: I-5 (HWY 001)

4.0 MI S OF TUALATIN R, Washington, OR

Built 1970 ADT: 120,789

NYBERG ROAD

Over: I-5 (HWY 001)

0.4 MI S OF TUALATIN RV, Washington, OR

Built 1975 ADT: 139,488

SAGERT ROAD

Over: HWY 1 I-5

0.9 MI S OF TUALATIN R., Washington, OR

Built 1969 ADT: 127,240

HAINES ROAD

Over: I-5 (HWY 001)

3.5 MI N OF TUALATIN RV, Washington, OR

Built 1985 ADT: 86,060

UPPER BOONES FERRY

Over: I-5 (HWY 001)

1.5 MI N OF TUALATIN RV, Washington, OR

Built 1975 ADT: 135,007

I-5 (HWY 001)

Over: LOWER BOONESFERRY

0.6 MI N OF TUALATIN RV, Washington, OR

Built 1975 ADT: 151,700

HWY 1W NB TO 1 NB

Over: I-5 (HWY 001)

1.3 MI N OF TIGARD CC, Washington, OR

Built 1985 ADT: 96,556

OR 6 (HWY 037)

Over: EB HWY 047

0.2 MI SW HWY 047 JCT, Washington, OR

Built 1954 ADT: 11,009

OR 6 (Hwy 037)

Over: Hwy 102

2.5 MI W OF HWY 47 JCT, Washington, OR

Built 1956 ADT: 7,236

MURRAY BLVD CO

Over: HWY 47 US 26

7.2 MI W OF PORTLAND CC, Washington, OR

Built 1991 ADT: 7,649

Cornell Road

Over: Hwy 47 US 26

8.6 MI W OF PORTLAND CC, Washington, OR

Built 1993 ADT: 117,563

OR 217 (HWY 144)

Over: PNWR

0.4 MI N OF ALLEN BLVD, Washington, OR

Built 1968 ADT: 119,200

US 26 (HWY 047) EB

Over: CEDAR HILLS BLVD

6.2 MI W OF PORTLAND CC, Washington, OR

Built 1966 ADT: 132,300

HWY 141

Over: OR 217 (HWY 144)

0.3 MI N OF HWY 1-W, Washington, OR

Built 1966 ADT: 83,136

OR 99W (HWY 91)

Over: OR 217 (HWY 144)

0.6 MI N OF TIGARD CC, Washington, OR

Built 1967 ADT: 83,136

72ND AVE

Over: HWY 144

0.8 MI S OF HWY 1-W, Washington, OR

Built 1967 ADT: 83,310

CONN 2 (PARKWAY)CO

Over: HWY 144

SUNSET INTERCHANGE, Washington, OR

Built 1971 ADT: 88,423

SW WILSHIRE

Over: HWY 144

1.3 MI N OF HWY 29, Washington, OR

Built 1971 ADT: 88,423

CABOT STREET

Over: HWY 144

0.3 MI N OF HWY 29, Washington, OR

Built 1971 ADT: 93,867

OR 217 (HWY 144)

Over: HWY 29 TV HWY

1.0 MI N OF ALLEN BLVD, Washington, OR

Built 1971 ADT: 28,762

OR 217 (HWY 144)

Over: HWY 40 ORE 10

0.3 MI N OF SPRR, Washington, OR

Built 1971 ADT: 29,390

HWY 141

Over: HWY 144

0.1 MI S OF HWY 143 JCT, Washington, OR

Built 1968 ADT: 81,951

OR 210 (HWY 143)

Over: HWY 144

1.5 MI SW BEAVERTON CC, Washington, OR

Built 1968 ADT: 93,779

Helevetia Rd

Over: Hwy 47 US 26

13.4 MI W OF PORTLAND CC, Washington, OR

Built 1985 ADT: 59,445

Meridian Rd

Over: Hwy 064

1.9 MI S OF STAFFORD RD, Washington, OR

Built 1969 ADT: 77,246

I-5 (HWY 001) NB

Over: I-5 SB CONN TO I-205 NB

14 MI S OF TUALATIN RIVER, Washington, OR

Built 1969 ADT: 38,623

I-5 (HWY 001) SB

Over: I-5 SB CONN TO I-205 NB

1.4 MI S OF TUALATIN R., Washington, OR

Built 1969 ADT: 38,623

Hwy 064AA

Over: Hwy 001

AT I-5 INTERCHANGE, Washington, OR

Built 1970 ADT: 63,620

I-5 NB TO I-205 NB

Over: I-5 SB CONN TO I-205 NB

1.5 MI S OF TUALATIN R., Washington, OR

Built 1969 ADT: 38,623

NW 185TH Ave

Over: Hwy 47 US 26

10.2 MI W OF PORTLAND CC, Washington, OR

Built 1972 ADT: 100,225

GORDON RD

Over: HWY 47 US 26

North Plains CL, Washington, OR

Built 1970 ADT: 36,756

Walker Road

Over: HWY 144

0.6 MI N OF HWY 29, Washington, OR

Built 1972 ADT: 93,867

GREENBURG ROAD

Over: HWY 144

0.7 N TIGARD CC, Washington, OR

Built 1973 ADT: 97,018

ALLEN BLVD

Over: HWY 144

0.3 MI S OF CABOT ST, Washington, OR

Built 1981 ADT: 97,879

DENNY RD & RAMP

Over: HWY 144

2.8 MI NW TIGARD CC, Washington, OR

Built 1978 ADT: 97,468

US 26 (HWY 047) CO

Over: BARNES RD CONN

5.1 MI W OF PORTLAND CC, Washington, OR

Built 1985 ADT: 10,900

Bethany Blvd.

Over: Hwy 47 (US 26)

8.8 MI W OF PORTLAND CC, Washington, OR

Built 1991 ADT: 117,563

CEM.ACC.RD-CAMELOT

Over: Hwy 47 US 26

3.8 MI W OF PORTLAND CC, Washington, OR

Built 1999 ADT: 105,119

HWY 1NB TO HWY 144

Over: I-5 (HWY 001)

2.63 MI N OF TUALATIN RV, Washington, OR

Built 2001 ADT: 88,870

US 26 (Hwy 047)CON

Over: Hwy 29 Canyon Road

3.7 MI W OF PORTLAND CC, Washington, OR

Built 2002 ADT: 3,591

SW MURRAY BLVD NB

Over: BNRR & TERMAN ROAD

005 MI N HWY 8, Washington, OR

Built 1999 ADT: 1,000

US 26 (Hwy 047)

Over: Hwy 29 Canyon Road

3.7 MI W OF PORTLAND CC, Washington, OR

Built 2004 ADT: 7,996

Jackson School Rd

Over: US 26 (HWY 047)

15.75 MI W Portland CC, Washington, OR

Built 2006 ADT: 22,076

US 26 (Hwy 047)

Over: Cedar Hills Blvd

6.2 MI W OF PORTLAND CC, Washington, OR

Built 2006 ADT: 57,973

GLENCOE RD CO

Over: HWY 47 US 26

17.3 MI W OF PORTLAND CC, Washington, OR

Built 2013 ADT: 36,756

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026