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)

NE GLASS PLANT RD

Fair

Over: B-116 X COLUMBIA SLOUGH

W OF I205/COLUMBIA SLOUGH, Multnomah, OR

Built 1977 Load: 44.5 t ADT: 1,945

N.E. 92ND AVE.

Fair

Over: B-85 X COLUMBIA SLOUGH

0.2 MI N OF COLUMBIA BLVD, Multnomah, OR

Built 1961 Load: 45.4 t ADT: 274

NE 207TH AVE

Fair

Over: RAILROAD

207TH INTCH,I-84 MP 14.4, Multnomah, OR

Built 1996 Load: 46.3 t ADT: 62,086

NE AIRPORT WAY

Fair

Over: B-136 X COLUMBIA SLOUGH

APW BRIDGE A E. OF 165TH, Multnomah, OR

Built 1992 Load: 47.6 t ADT: 15,271

NE 33rd Ave

Fair

Over: B-174XCol Slough

NE 33rd Ave., Multnomah, OR

Built 2006 Load: 48.1 t ADT: 6,998

Hwy 002

Fair

Over: 162nd Ave

6.6 MI E OF PORTLAND ESL, Multnomah, OR

Built 1990 Load: 49.9 t ADT: 80,102

Glisan St

Fair

Over: MAX Light Rail Transit

NEAR GLISAN ST OXING I-20, Multnomah, OR

Built 1985 Load: 52.6 t ADT: 125,408

CORNELL ROAD

Fair

Over: B-122 (1ST W. OF TUNNEL)

IN N W PORTLAND, Multnomah, OR

Built 1986 Load: 52.8 t ADT: 11,263

I-84 (HWY 002) EB

Fair

Over: MOFFETT CREEK

4.6 MI W CASCADE LOCKS, Multnomah, OR

Built 2009 Load: 53.5 t ADT: 12,177

NE SUNDERLAND ROAD

Fair

Over: B-94 X DRAINAGE DITCH

00.6 MI S OF MARINE DRIVE, Multnomah, OR

Built 1970 Load: 57.0 t ADT: 412

GEORGE SMITH ROAD

Fair

Over: PALMER CREEK

03.0 MI S OF BRIDAL VEIL, Multnomah, OR

Built 1970 Load: 57.2 t ADT: 73

RIVERGATE/LOMBARD

Fair

Over: B-105 X COLUMBIA SLOUGH

TERMINAL 6 - RIVERGATE, Multnomah, OR

Built 1985 Load: 58.1 t ADT: 6,965

43rd Ave Off Ramp

Fair

Over: UPRR and TriMet

2.8 MI E OF HWY I-5, Multnomah, OR

Built 1985 Load: 58.6 t ADT: 67,670

Washington Street

Fair

Over: TRIMET LRT

6.0 MI S ORE-WASH LINE, Multnomah, OR

Built 2007 Load: 60.6 t ADT: 59,691

Port. Mil Lt Rail

Fair

Over: WILLAMETTE RIVER

WILLAMETTE RIVER MP 13.2, Multnomah, OR

Built 2015 Load: 61.9 t ADT: 630

PROJECT ACCESS

Fair

Over: BONNEVILLE DAM

TANNER CREEK SPUR BRIDGE, Multnomah, OR

Built 1907 Load: 64.8 t ADT: 60

Hwy 064 (I-205 NB)

Fair

Over: Light Rail

4.3 MI S ORE-WASH LINE, Multnomah, OR

Built 1979 Load: 69.0 t ADT: 73,339

I-205 (HWY 064)

Fair

Over: Light Rail

6.8 MI S ORE-WASH LINE, Multnomah, OR

Built 1978 Load: 69.0 t ADT: 133,422

VISITOR CENTER BR

Fair

Over: BONNEVILLE DAM

MAINSTEM FISHLADDER BR., Multnomah, OR

Built 1935 Load: 97.2 t ADT: 1,000

NW MAYWOOD DR

Good

Over: B-17 ABOVE W BURNSIDE

NR W BURNSIDE, Multnomah, OR

Built 1934 Load: 10.7 t ADT: 777

NW Wallula Ave

Good

Over: TriMet Light Rail Track

010 MI NW GRESHAM CTY HAL, Multnomah, OR

Built 1994 Load: 13.9 t ADT: 133,422

Hwy 092

Good

Over: Partial Viaduct

3.8 MI W OF ST JOHNS BR, Multnomah, OR

Built 1949 Load: 16.2 t ADT: 9,976

NW EVERETT

Good

Over: B-128 1ST TO FRONT AVE

NW EVERETT ST @ NW 1ST AV, Multnomah, OR

Built 1986 Load: 18.8 t ADT: 7,203

SE 112TH AVE

Good

Over: B-89 OVER JOHNSON CREEK

SE PORTLAND FAU 9741, Multnomah, OR

Built 1947 Load: 18.8 t ADT: 7,011

SW 64TH COURT

Good

Over: FANNO CREEK

N OF SW CANBY ROAD, Multnomah, OR

Built 2000 Load: 20.0 t ADT: 277

I-84 (HWY 002) WB

Good

Over: MCCORD CREEK

5.7 MI W CASCADE LOCKS, Multnomah, OR

Built 1998 Load: 20.4 t ADT: 12,054

Campus Drive

Good

Over: Parking Garage

OHSU, Multnomah, OR

Built 2004 Load: 22.2 t ADT: 1,000

Hwy 001

Good

Over: Iowa Street Viaduct

1.7 MI N MULTNOMAH BLVD, Multnomah, OR

Built 2014 Load: 23.3 t ADT: 109,170

OR 99E(Hwy 81)

Good

Over: Johnson Creek

0.2 MI N MILWAUKIE CC, Multnomah, OR

Built 1991 Load: 26.9 t ADT: 43,859

ARATA RD (NE 238)

Good

Over: UPRR

1.5 MI W SANDY RIVER, Multnomah, OR

Built 1998 Load: 26.9 t ADT: 15,430

SE Cochran Rd

Good

Over: Beaver Creek

SE Cochran Rd., Multnomah, OR

Built 2019 Load: 27.9 t ADT: 3,256

VISITOR & PROJECT

Good

Over: BONNEVILLE DAM

NEW LOCK SWING BRIDGE, Multnomah, OR

Built 1992 Load: 30.1 t ADT: 500

Hwy 81 Conn Hwy 01

Good

Over: Bike Path

1.0 MI S OF INTERSTATE BR, Multnomah, OR

Built 1992 Load: 30.8 t ADT: 7,247

AIRPORT WAY

Good

Over: PACIFIC RAILROAD

N. OF SANDY BLVD., Multnomah, OR

Built 1992 Load: 30.8 t ADT: 2,496

I-84 (HWY 002)

Good

Over: TOOTH ROCK TUNNEL

2.3 MR W. CASCADE LOCKS, Multnomah, OR

Built 1970 Load: 31.4 t ADT: 12,177

North Leadbetter R

Good

Over: BNSF RR

ON North Leadbetter Rd, Multnomah, OR

Built 2009 Load: 34.7 t ADT: 1,259

NE 21ST AVE

Good

Over: B-8 OVER COLUMBIA SLOUGH

21ST-N OF COLUMBIA BLVD, Multnomah, OR

Built 1974 Load: 36.3 t ADT: 1,416

HWY 001 (I-5) Ramp

Good

Over: UPRR

305.92 MP HWY 001 Ramp, Multnomah, OR

Built 2008 Load: 36.6 t ADT: 43,180

Hwy 001 Conn

Good

Over: Bikepath

1.1 MI S OF INTERSTATE BR, Multnomah, OR

Built 1992 Load: 39.2 t ADT: 57,912

LATOURELL ROAD

Good

Over: LATOURELL CREEK

02.0 E OF THE VISTA HOUSE, Multnomah, OR

Built 2022 Load: 41.1 t ADT: 99

HWY 40 CAPITOL HWY

Good

Over: B-140 SEMI-VIADUCT

SEMIVIADUCT 1 W OF BARBUR, Multnomah, OR

Built 1959 Load: 42.6 t ADT: 21,309

HWY 40 CAPITOL HWY

Good

Over: B-141 SEMI-VIADUCT

SEMIVIADUCT 2 W OF BARBUR, Multnomah, OR

Built 1959 Load: 42.6 t ADT: 21,947

NE 47TH AVE

Good

Over: B-93 X COLUMBIA SLOUGH

00.2 MI N OF COL BLVD, Multnomah, OR

Built 1991 Load: 43.5 t ADT: 6,019

N PORTLAND RD

Good

Over: B-92 OVER UPRR

N OF COLUMBIA BLVD, Multnomah, OR

Built 1997 Load: 43.7 t ADT: 12,541

Hwy003AF_NE

Good

Over: OverMulti_Use

PORTLAND, Multnomah, OR

Built 2016 Load: 43.7 t ADT: 8,000

Hwy003AF_SE

Good

Over: OverMulti_Use

PORTLAND, Multnomah, OR

Built 2017 Load: 43.7 t ADT: 8,000

NE 21ST AVE

Good

Over: Elrod Slough

21ST-N of NE Riverside W., Multnomah, OR

Built 2014 Load: 43.7 t ADT: 1,416

NE 158TH AVE

Good

Over: B-024 X COLUMBIA SLOUGH

0.3 MILES N OF SANDY BLVD, Multnomah, OR

Built 2000 Load: 44.5 t ADT: 2,779

NE 47TH AVE

Good

Over: B-161 X WHITAKER SLOUGH

N OF COLUMBIA BLVD, Multnomah, OR

Built 2001 Load: 45.4 t ADT: 4,048

N Rivergate Blvd.

Good

Over: UPRR

UNKNOWN, Multnomah, OR

Built 2020 Load: 45.4 t ADT: 5,465

Read our methodology — how this data is sourced, computed, and verified.

Related

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