Multnomah County, OR

474 public highway bridges

Multnomah County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Multnomah County, Oregon contains 474 public highway bridges. Roughly 9.1% are rated “Good,” 37.8% “Fair,” and 2.5% “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.

474
Total Bridges
9.1%
Good
37.8%
Fair
2.5%
Poor Condition

Condition Distribution

Good
9.1% (43)
Fair
37.8% (179)
Poor
2.5% (12)

All Bridges (474)

NE 148TH AVE

Good

Over: B-023 x COLUMBIA SLOUGH

0.3 MILES N OF SANDY BLVD, Multnomah, OR

Built 2000 Load: 46.3 t ADT: 6,753

242ND AVE

Good

Over: JOHNSON CREEK

13 MI E CLACKAMAS CO LINE, Multnomah, OR

Built 1994 Load: 46.3 t ADT: 7,652

282nd St.

Good

Over: Johnson Creek

032 MI SW BORING, Multnomah, OR

Built 2008 Load: 48.6 t ADT: 3,318

NE 138TH AVE

Good

Over: B-086 X COLUMBIA SLOUGH

00.3 MI N OF SANDY BLVD, Multnomah, OR

Built 2000 Load: 51.7 t ADT: 10,129

ROAD

Good

Over: FIR CREEK

S-14, T-1S, R-6E, WM, Multnomah, OR

Built 1990 Load: 55.4 t ADT: 4

NE 207TH AVE

Good

Over: FAIRVIEW CREEK

.5 mi N of Glisan St, Multnomah, OR

Built 2000 Load: 56.2 t ADT: 10,797

185TH AVE

Good

Over: SLOUGH

.25 MI N OF SANDY BLVD, Multnomah, OR

Built 1992 Load: 56.2 t ADT: 5,101

NE AIRPORT WAY

Good

Over: B-137 X COLUMBIA SLOUGH

APW BRIDGE B NR PUMP STA., Multnomah, OR

Built 1992 Load: 61.7 t ADT: 15,271

NW Reeder Rd.

Good

Over: Dairy Creek

MP 4.89, Multnomah, OR

Built 2018 Load: 63.5 t ADT: 1,300

FOSTER RD

Good

Over: KELLEY CREEK

MP 6.67 FOSTER CR RD, Multnomah, OR

Built 2006 Load: 69.0 t ADT: 15,109

FAS A656

Good

Over: Beaver Creek

MP 14.50, Multnomah, OR

Built 2019 Load: 69.0 t ADT: 6,445

SE 122ND AVE

Good

Over: B-99 OVER JOHNSON CREEK

00.4 MI S OF FOSTER ROAD, Multnomah, OR

Built 2020 Load: 69.0 t ADT: 2,119

Hwy 100

Poor

Over: Viaduct

0.2 MI W MULTNOMAH FALLS, Multnomah, OR

Built 1914 Load: 4.5 t ADT: 781

FAS A656

Poor

Over: SANDY RIVER

040 MI SE TROUTDALE, Multnomah, OR

Built 1914 Load: 11.0 t ADT: 6,445

US26 (HWY 026AC)

Poor

Over: ARTHUR ST VIADUCT

1.0 MI SE PORTLAND CC, Multnomah, OR

Built 1947 Load: 13.3 t ADT: 8,795

N BURGARD ST

Poor

Over: B-1 OVER UP/SPRR

AT TERMINAL NO 4, Multnomah, OR

Built 1930 Load: 17.5 t ADT: 13,113

WILLAMETTE BLVD

Poor

Over: BURLINGTON NORTHERN R&R

N. WILLAMETTE OVER BURLIN, Multnomah, OR

Built 1909 Load: 19.1 t ADT: 10,361

FESSENDEN ST

Poor

Over: BURLINGTON NORTHERN R&R

FESSENDEN ST. OVER BURLIN, Multnomah, OR

Built 1909 Load: 19.1 t ADT: 4,931

Hwy 123

Poor

Over: BNSF

N. LOMBARD ST OVER BURLIN, Multnomah, OR

Built 1909 Load: 19.4 t ADT: 13,970

HWY 1W (STEEL BR)

Poor

Over: WILLAMETTE RIVER

0.4 MI NE PORTLAND CC, Multnomah, OR

Built 1910 Load: 19.8 t ADT: 10,362

NW BROADWAY RAMP

Poor

Over: BROADWAY ST CONN

WEST END BROADWAY BR, Multnomah, OR

Built 1913 Load: 21.4 t ADT: 30,388

COLUMBIA BLVD

Poor

Over: B-78 OVER BNRR

2 MILES NW OF JCT. I-5, Multnomah, OR

Built 1909 Load: 23.3 t ADT: 13,910

Hwy 081

Poor

Over: UPRR

3.9 MI N PORTLAND CC, Multnomah, OR

Built 1916 Load: 29.2 t ADT: 14,354

I-84 (HWY 002) EB

Poor

Over: MCCORD CREEK

5.7 MI W CASCADE LOCKS, Multnomah, OR

Built 1962 Load: 32.4 t ADT: 12,054

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.