US Bridges

US 26 (hwy 047) over HWY 144

Fair

Washington County, Oregon · 5.3 MI W of Portland Cc · Structure no. 06980A047 06919

Built
1986
39 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
245 ft
3 main spans
Daily traffic
133,089
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 047) over HWY 144 is a prestressed concrete slab carrying US 26 (hwy 047) over HWY 144 in Washington County, Oregon. It was built in 1986, so it is 39 years old, younger 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 133,089 vehicles a day, roughly 4% of them trucks, projected to reach 146,000 by 2042. The structure is 245 ft (74.6 m) long and 174 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 047)
CrossesHWY 144
Location5.3 MI W of Portland Cc
RouteU.S. Route 26
CountyWashington County
StateOregon
Coordinates45.50843, -122.77827
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length245 ft (74.6 m)
Longest span90 ft (27.3 m)
Deck width174 ft (53 m)
Roadway width166 ft (50.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133,089 (2022)
Projected traffic146,000 by 2042
Trucks4%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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$7.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 26 (hwy 047) over HWY 144 built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 26 (hwy 047) over HWY 144 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 HWY 144 carry?

About 133,089 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is US 26 (hwy 047) over HWY 144?

The structure is 245 ft (74.6 m) long with a longest span of 90 ft (27.3 m) and a deck 174 ft wide.

Who owns US 26 (hwy 047) over HWY 144?

It is owned by the State Highway Agency.