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)

NW ALEXANDRA AVE

Fair

Over: B-14 OVER CANYON

W END OF NW GORDON ST, Multnomah, OR

Built 1922 Load: 8.4 t ADT: 137

NE 28TH AVE

Fair

Over: B-27 OVER UPRR

1 BLK N OF SANDY BLVD, Multnomah, OR

Built 1908 Load: 8.7 t ADT: 6,578

GORDON CREEK ROAD

Fair

Over: DRAW

04.0 MI S OF CORBETT, Multnomah, OR

Built 1952 Load: 9.1 t ADT: 1,147

Hwy 100

Fair

Over: Shepperds Dell

6.5 MI E CORBETT, Multnomah, OR

Built 1914 Load: 9.4 t ADT: 534

174TH AVE

Fair

Over: JOHNSON CREEK

022 MI S FAP 24, Multnomah, OR

Built 1950 Load: 9.4 t ADT: 9,838

SE 32ND

Fair

Over: B-87 X SPRINGWATER TRAIL

SE TACOMA AT 32ND AVE, Multnomah, OR

Built 1970 Load: 9.7 t ADT: 17,752

I-5 (HWY 001) NB

Fair

Over: Fremont Viaduct

1.5 MI N OF BURNSIDE BR, Multnomah, OR

Built 1963 Load: 9.7 t ADT: 53,047

2C TO HIST COL HWY

Fair

Over: UPRR

TROUTDALE CC, Multnomah, OR

Built 1992 Load: 10.4 t ADT: 28,168

SW VISTA AVE

Fair

Over: B-41 SEMI-VIADUCT

1 BLK S OF MONTGOMERY DR, Multnomah, OR

Built 1914 Load: 10.4 t ADT: 8,888

N GOING STREET

Fair

Over: B-12 OVER UPRR YARDS

BET GREELEY AVE & SWAN IS, Multnomah, OR

Built 1930 Load: 11.0 t ADT: 42,758

Hwy 081

Fair

Over: Columbia Slough

1.6 MI S OF I-5 JCT, Multnomah, OR

Built 1934 Load: 11.3 t ADT: 16,300

NW MAYWOOD DR

Fair

Over: B-18 SEMI-VIADUCT

AT NW MELINDA AVE, Multnomah, OR

Built 1934 Load: 11.3 t ADT: 709

HWY 061

Fair

Over: Willamette River

FREMONT BRIDGE, Multnomah, OR

Built 1973 Load: 11.7 t ADT: 101,643

FAU9956

Fair

Over: JOHNSON CREEK

010 MI E CLACKAMAS CO L, Multnomah, OR

Built 1930 Load: 11.7 t ADT: 2,901

NW FRONT AVE

Fair

Over: B-77 SEMI-VIADUCT

AT POP TERMINAL 1, Multnomah, OR

Built 1924 Load: 12.0 t ADT: 11,101

Hwy 100

Fair

Over: Bridal Veil Falls

3.7 MI W MULTNOMAH FALLS, Multnomah, OR

Built 1914 Load: 12.3 t ADT: 786

002CS

Fair

Over: EAGLE CREEK

AT CASCADE HATCHERY, Multnomah, OR

Built 1914 Load: 12.3 t ADT: 161

Hwy 064 SB

Fair

Over: Pedestrian Path

0.8 MI N OF PORTLAND SCL, Multnomah, OR

Built 1974 Load: 13.3 t ADT: 65,631

OR 99E (HWY81)CO

Fair

Over: Johnson Creek

0.2 MI N MILWAUKIE CL, Multnomah, OR

Built 1992 Load: 13.3 t ADT: 43,859

NW 1ST

Fair

Over: B-128B EVERETT COMPLEX

BTWN NW EVERETT/NW GLISAN, Multnomah, OR

Built 1986 Load: 13.3 t ADT: 417

Hwy 120

Fair

Over: Columbia Slough

5.5 MI NW PORTLAND CC, Multnomah, OR

Built 1933 Load: 13.6 t ADT: 12,185

OR 99W(HWY 91)NB

Fair

Over: HARBOR DRIVE VIADUCT

NEAR W END ROSS ISL. BR., Multnomah, OR

Built 1949 Load: 13.6 t ADT: 14,622

GORDAN CREEK ROAD

Fair

Over: GORDAN CREEK

03.75 MI S OF CORBETT, Multnomah, OR

Built 1963 Load: 13.6 t ADT: 1,045

Hwy 002 Conn

Fair

Over: NB Conn to Hwy 2 EB

0.5 MI E PORTLAND CC, Multnomah, OR

Built 1956 Load: 13.6 t ADT: 66,929

BURNSIDE STREET

Fair

Over: WILLAMETTE RIVER

WILLAMETTE RIVER MP 12.4, Multnomah, OR

Built 1926 Load: 13.9 t ADT: 35,000

US 30 BY (HWY 123)

Fair

Over: Private Driveway

6.0 MI NW PORTLAND CC, Multnomah, OR

Built 1931 Load: 13.9 t ADT: 19,869

Traffic and TRIMET

Fair

Over: B-128E NW EVERETT/RAMP

S/W'S E & W OF NW 1ST AVE, Multnomah, OR

Built 1986 Load: 14.3 t ADT: 1,259

I-5 (HWY 001) NB

Fair

Over: UPRR

0.2 MI N OF BURNSIDE BR, Multnomah, OR

Built 1963 Load: 14.3 t ADT: 33,663

HWY 91 NB

Fair

Over: FRONT AVE TO STEEL BR

AT W END OF STEEL BRIDGE, Multnomah, OR

Built 1950 Load: 14.5 t ADT: 5,181

N LEVERMAN ST

Fair

Over: B-69 OVER UPRR

SWAN ISLAND, Multnomah, OR

Built 1981 Load: 14.8 t ADT: 6,003

Hwy 092

Fair

Over: PNWR

4.3 MI W ST JOHNS BR, Multnomah, OR

Built 1968 Load: 14.9 t ADT: 19,952

ROAD

Fair

Over: MULTNOMAH CREEK

NO DATA ENTERED, Multnomah, OR

Built 1983 Load: 14.9 t ADT: 50

N VANCOUVER AVE

Fair

Over: B-6 X UNION PACIFIC R R

BTWN COL BLVD & FARRAGUT, Multnomah, OR

Built 1929 Load: 14.9 t ADT: 8,813

SE CIRCLE AVE NO 1

Fair

Over: JOHNSON CREEK

001 W OF JENNE ROAD, Multnomah, OR

Built 1954 Load: 14.9 t ADT: 54

I-5 (HWY 001) SB

Fair

Over: FREMONT VIADUCT

1.5 MI N OF BURNSIDE BR, Multnomah, OR

Built 1963 Load: 14.9 t ADT: 53,047

MORRISON ST

Fair

Over: WILLAMETTE RIVER

WILLAMETTE RIVER MP 12.8, Multnomah, OR

Built 1958 Load: 15.2 t ADT: 55,335

I-5 (HWY 001)

Fair

Over: Elliot School Viaduct

1.2 MI N OF BURNSIDE BR, Multnomah, OR

Built 1963 Load: 15.2 t ADT: 106,094

NORTH LOMBARD ST

Fair

Over: B-172 S RIVERGATE BR.

UNKNOWN, Multnomah, OR

Built 2004 Load: 15.2 t ADT: 6,965

Hwy 002 Conn

Fair

Over: UPRR Conn Rt

AT BRIDAL VEIL INT, Multnomah, OR

Built 1945 Load: 15.4 t ADT: 11,943

Hwy 100

Fair

Over: Viaduct

0.3 MI E MULTNOMAH FALLS, Multnomah, OR

Built 1914 Load: 15.6 t ADT: 781

I-84 (HWY 002) EB

Fair

Over: TANNER CREEK

3.4 MI W CASCADE LOCKS, Multnomah, OR

Built 1962 Load: 15.6 t ADT: 12,177

Hwy 081

Fair

Over: Grand Ave

1.5 MI SE PORTLAND CC, Multnomah, OR

Built 1937 Load: 15.6 t ADT: 64,338

Hwy91C to Hwy1NB

Fair

Over: SW Terwilliger Blvd.

1.7 M S OF ROSS ISL. BR., Multnomah, OR

Built 1993 Load: 15.6 t ADT: 10,148

NE 33RD AVE

Fair

Over: B-83 X OLD MARINE DR ROW

NE 33RD S OF MARINE DR, Multnomah, OR

Built 1961 Load: 15.9 t ADT: 6,073

NW THURMAN ST

Fair

Over: B-15 X MACLEAY PARK

BALCH GULCH AT FOREST PK, Multnomah, OR

Built 1905 Load: 16.2 t ADT: 4,501

Departure Roadway

Fair

Over: PDX Main Terminal

PDX, Multnomah, OR

Built 1973 Load: 16.5 t ADT: 1,309

Hwy 100

Fair

Over: Oneonta Gorge Creek

2.2 MI E MULTNOMAH FALLS, Multnomah, OR

Built 1948 Load: 16.8 t ADT: 781

NW KITTRIDGE AVE.

Fair

Over: B-10 OVER BNRR

NW FRONT-NW ST HELENS RD, Multnomah, OR

Built 1968 Load: 16.8 t ADT: 8,604

SW CANYON RD

Fair

Over: GULLY

3 BLKS W OF VISTA, Multnomah, OR

Built 1927 Load: 16.8 t ADT: 14,607

HWY 3

Fair

Over: RIVERSIDE CANYON

0.04 MI N RIVERWOOD ROAD, Multnomah, OR

Built 1926 Load: 17.2 t ADT: 13,903

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.