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)

Sort:

I-405 (HWY 061)

Over: CONN'S 1 & 2

W MARQUAM INTERCHANGE, Multnomah, OR

Built 1966 ADT: 4,097

I-84 (HWY 002)

Over: CONN TO WARRENDALE

6.4 MI W CASCADE LOCKS, Multnomah, OR

Built 1961 ADT: 46

Hwy 001 (I-5)

Over: Col. Blvd & UPRR

2.5 MI S OF INTERSTATE BR, Multnomah, OR

Built 1964 ADT: 109,200

I-5 (Hwy 001)

Over: Col. Slough & Hwy 1 Conn

2.2 MI S OF INTERSTATE BR, Multnomah, OR

Built 1964 ADT: 5,896

E FREMONT APPROACH

Over: CITY STREETS

E FREMONT INTRCHNGE, Multnomah, OR

Built 1973 ADT: 110,200

E FREMONT APPROACH

Over: CITY STREETS RR

E FREMONT INTRCHGE, Multnomah, OR

Built 1973 ADT: 110,200

I-405 (HWY 061)CON

Over: 61 NB CONN TO HWY 1 SB

E FREMONT INTRCHGE, Multnomah, OR

Built 1973 ADT: 5,181

I-5 (HWY 001) CON

Over: I-5 NB TO I-405 SB

EAST FREMONT INTRCHNGE, Multnomah, OR

Built 1973 ADT: 6,676

CONN 2 TO IVY ST

Over: I-5 (HWY 001)

E FREMONT INTRCHGE, Multnomah, OR

Built 1973 ADT: 1,200

FREMONT ON RAMP

Over: CONN 3 FROM IVY ST

E FREMONT INTCHGE, Multnomah, OR

Built 1973 ADT: 12,242

I-405 (HWY 061) CO

Over: HWY 61 NB TO HWY 1 NB

ET FREMONT INTCHGE, Multnomah, OR

Built 1973 ADT: 12,242

I-405 (HWY 061) CO

Over: SB 61 TO FREMONT BR

E FREMONT INTCHGE, Multnomah, OR

Built 1973 ADT: 7,735

Hwy 081

Over: Hwy 001

6.0 MI N OF PORTLAND CC, Multnomah, OR

Built 1991 ADT: 57,912

Hwy 123

Over: Hwy 001

3.5 MI N OF PORTLAND CC, Multnomah, OR

Built 1964 ADT: 98,559

Rosa Parks Way

Over: Hwy 001 (I-5)

3.5 MI S OF INTERSTATE BR, Multnomah, OR

Built 1964 ADT: 112,614

Ainsworth St

Over: Hwy 001 (I-5)

3.2 MI N OF BURNSIDE BR, Multnomah, OR

Built 1964 ADT: 114,153

Killingsworth St

Over: Hwy 001 (I-5)

2.9 MI N OF BURNSIDE BR, Multnomah, OR

Built 1964 ADT: 57,076

Alberta St

Over: Hwy 001 (I-5)

2.7 MI N OF BURNSIDE BR, Multnomah, OR

Built 1964 ADT: 114,153

Hwy 001 Conn 2

Over: Going St

2.5 MI N OF BURNSIDE BR, Multnomah, OR

Built 1964 ADT: 107,945

Skidmore St

Over: Hwy 001 (I-5)

24 MI N OF BURNSIDE BR, Multnomah, OR

Built 1964 ADT: 107,945

I-5 (Hwy 1)

Over: Hwy 91 NB TO Hwy 1 NB

1.5 MI S OF INTERSTATE BR, Multnomah, OR

Built 1964 ADT: 5,890

Hwy 123

Over: NE 122nd Ave

7.0 MI NE PORTLAND CC, Multnomah, OR

Built 1962 ADT: 18,400

HWY 91

Over: HWY 61

0.1 MI S PORTLAND CC, Multnomah, OR

Built 1964 ADT: 104,671

US 26 (HWY 026) EB

Over: HWY 61 I-405

1.0 MI S PORTLAND CC, Multnomah, OR

Built 1964 ADT: 19,807

SW 1ST AVE

Over: HWY 61

0.2 MI N OF WATER AVE, Multnomah, OR

Built 1964 ADT: 71,649

SW 4TH AVE

Over: HWY 61

0.3 MI S OF SW PARK, Multnomah, OR

Built 1964 ADT: 32,730

CONN 8(5TH ONRAMP)

Over: HWY 61

0.2 MI S OF SW PARK, Multnomah, OR

Built 1964 ADT: 71,649

SW 5TH AVE

Over: HWY 61

0.4 MI S OF 12TH AVE, Multnomah, OR

Built 1964 ADT: 32,730

SW 6TH AVE(CONN3)

Over: I-405 (HWY 61)

0.4 MI S OF SW 12TH AVE, Multnomah, OR

Built 1964 ADT: 32,730

CONN 6

Over: HWY 61

BROADWAY ON-RAMP (SB), Multnomah, OR

Built 1964 ADT: 35,824

SW BROADWAY(CONN4)

Over: HWY 61

0.3 MI S OF SW 12TH AVE, Multnomah, OR

Built 1967 ADT: 52,335

SW PARK

Over: HWY 61

0.2 MI S OF SW 12TH AVE, Multnomah, OR

Built 1967 ADT: 104,671

CONN 4

Over: HWY 61

0.1 MI S OF MORRISON ST, Multnomah, OR

Built 1968 ADT: 52,335

TAYLOR ST

Over: HWY 61

0.1 MI S OF MORRISON ST, Multnomah, OR

Built 1968 ADT: 81,503

SALMON ST

Over: HWY 61

0.5 MI SW PORTLAND CC, Multnomah, OR

Built 1968 ADT: 81,503

CONN 3

Over: HWY 61

0.1 MI N OF JEFFERSON ST, Multnomah, OR

Built 1968 ADT: 89,410

Jefferson St

Over: HWY 61

0.2 MI S OF TAYLOR ST, Multnomah, OR

Built 1967 ADT: 44,705

Columbia St

Over: HWY 61

0.1 MI N OF MARKET ST, Multnomah, OR

Built 1967 ADT: 44,705

I-405 (HWY 061) CO

Over: HWY 61 & CONN 4

0.5 MI SW PORT CC, Multnomah, OR

Built 1967 ADT: 2,921

I-405 (HWY 061)

Over: HWY 47 CONN 1

0.1 MI S OF JEFFERSON ST, Multnomah, OR

Built 1967 ADT: 24,746

US 26 (HWY 047) CO

Over: HWY 061 I-405

0.5 MI W OF PORTLAND CC, Multnomah, OR

Built 1967 ADT: 50,821

US 26 (HWY 047) CO

Over: HWY 061 I-405

W SIDE PORTLAND CC, Multnomah, OR

Built 1967 ADT: 27,298

CONN 2

Over: HWY 61

0.1 MI S OF CLAY ST, Multnomah, OR

Built 1967 ADT: 2,921

CONN 7(MONTGOMERY)

Over: HWY 61

Sunset Interchange, Multnomah, OR

Built 1967 ADT: 89,410

CONN 8 (SW 13TH)

Over: HWY 61

SUNSET INTERCHANGE, Multnomah, OR

Built 1967 ADT: 104,671

CONN'S 6,7,&8

Over: CONN 2 (HWY 47)

SUNSET INTERCHANGE, Multnomah, OR

Built 1967 ADT: 3,357

SW 12TH ST

Over: HWY 61

0.2 MI S OF MARKET ST, Multnomah, OR

Built 1967 ADT: 52,335

BOTH DECKS HWY 61

Over: NW FRONT ST RR

W FREMONT INTRCHE, Multnomah, OR

Built 1973 ADT: 110,200

HWY 2W WB

Over: HWY 61 NB TO HWY 2W WB

WEST FREMONT INTCHGE, Multnomah, OR

Built 1972 ADT: 47,165

I-405 (HWY 061) SB

Over: CITY STREETS

W FREMONT INTRCHGE, Multnomah, OR

Built 1972 ADT: 1,000

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

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Compiled by PlainBridges, Independent data publisher

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.