US Bridges

Columbia ST over HWY 61

Fair

Multnomah County, Oregon · 0.1 MI N of Market ST · Structure no. 09253 061 00172

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
263 ft
2 main spans
Daily traffic
114,800
2018 count
Owner
State
State Highway Agency

About this bridge

Columbia ST over HWY 61 is a steel continuous stringer/multi-beam or girder carrying Columbia ST over HWY 61 in Multnomah County, Oregon. It was built in 1967, so it is 58 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 114,800 vehicles a day, roughly 8% of them trucks, projected to reach 127,400 by 2038. The structure is 263 ft (80.2 m) long and 60 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesColumbia ST
CrossesHWY 61
Location0.1 MI N of Market ST
RouteCity Street 405
CountyMultnomah County
StateOregon
Coordinates45.51632, -122.68825
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length263 ft (80.2 m)
Longest span134 ft (40.8 m)
Deck width60 ft (18.3 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic114,800 (2018)
Projected traffic127,400 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Columbia ST over HWY 61 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Columbia ST over HWY 61 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Columbia ST over HWY 61 carry?

About 114,800 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Columbia ST over HWY 61?

The structure is 263 ft (80.2 m) long with a longest span of 134 ft (40.8 m) and a deck 60 ft wide.

Who owns Columbia ST over HWY 61?

It is owned by the State Highway Agency.