US Bridges

US 26 (hwy 047) over Rigid Frame Oxing 18th

Fair

Multnomah County, Oregon · 0.8 MI W of Portland Cc · Structure no. 09392 047 07370

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Frame
Concrete
Length
47 ft
1 main span
Daily traffic
11,496
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 047) over Rigid Frame Oxing 18th is a concrete frame carrying US 26 (hwy 047) over Rigid Frame Oxing 18th in Multnomah County, Oregon. It was built in 1968, so it is 57 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 6 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 11,496 vehicles a day, roughly 4% of them trucks, projected to reach 11,600 by 2042. The structure is 47 ft (14.3 m) long and 160 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 047)
CrossesRigid Frame Oxing 18th
Location0.8 MI W of Portland Cc
RouteU.S. Route 26
CountyMultnomah County
StateOregon
Coordinates45.51533, -122.69381
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.1 US tons
Inventory rating75 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span42 ft (12.8 m)
Deck width160 ft (48.7 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,496 (2022)
Projected traffic11,600 by 2042
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 26 (hwy 047) over Rigid Frame Oxing 18th built?

It was built in 1968, making it 57 years old in 2025.

What condition is US 26 (hwy 047) over Rigid Frame Oxing 18th 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 October 2024.

How much traffic does US 26 (hwy 047) over Rigid Frame Oxing 18th carry?

About 11,496 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is US 26 (hwy 047) over Rigid Frame Oxing 18th?

The structure is 47 ft (14.3 m) long with a longest span of 42 ft (12.8 m) and a deck 160 ft wide.

Who owns US 26 (hwy 047) over Rigid Frame Oxing 18th?

It is owned by the State Highway Agency.