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)

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.

Related

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