US Bridges

US 26 (hwy 047) CO over HWY 061 I-405

Fair

Multnomah County, Oregon · 0.5 MI W of Portland Cc · Structure no. 09254C047 07397

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
322 ft
3 main spans
Daily traffic
9,267
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 047) CO over HWY 061 I-405 is a concrete continuous box beam or girders - multiple carrying US 26 (hwy 047) CO over HWY 061 I-405 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 9,267 vehicles a day, roughly 4% of them trucks, projected to reach 9,400 by 2042. The structure is 322 ft (98 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 047) CO
CrossesHWY 061 I-405
Location0.5 MI W of Portland Cc
RouteU.S. Route 26
CountyMultnomah County
StateOregon
Coordinates45.51557, -122.68888
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length322 ft (98 m)
Longest span112 ft (34 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,267 (2022)
Projected traffic9,400 by 2042
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 26 (hwy 047) CO over HWY 061 I-405 built?

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

What condition is US 26 (hwy 047) CO over HWY 061 I-405 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 US 26 (hwy 047) CO over HWY 061 I-405 carry?

About 9,267 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is US 26 (hwy 047) CO over HWY 061 I-405?

The structure is 322 ft (98 m) long with a longest span of 112 ft (34 m) and a deck 36 ft wide.

Who owns US 26 (hwy 047) CO over HWY 061 I-405?

It is owned by the State Highway Agency.