Multnomah County, OR

474 public highway bridges

Multnomah County Bridge Snapshot

Multnomah County, Oregon contains 474 public highway bridges in the FHWA National Bridge Inventory. Roughly 9.1% are rated “Good,” 37.8% “Fair,” 2.5% “Poor,” and 2.5% 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.

474

Total Bridges

9.1%

Good

2.5%

Poor

2.5%

Structurally Deficient

Condition Distribution

Good

9.1% (43)

Fair

37.8% (179)

Poor

2.5% (12)

SD

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 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