US Bridges

US 26 (hwy 047) WB over East Fork Dairy Creek

Fair

Washington County, Oregon · 175 MI W Portland Swcl · Structure no. 21323 047 05455

Built
2010
15 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete Continuous
Length
129 ft
3 main spans
Daily traffic
11,858
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 047) WB over East Fork Dairy Creek is a prestressed concrete continuous slab carrying US 26 (hwy 047) WB over East Fork Dairy Creek in Washington County, Oregon. It was built in 2010, so it is 15 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 11,858 vehicles a day, roughly 2% of them trucks, projected to reach 16,850 by 2042. The structure is 129 ft (39.3 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 047) WB
CrossesEast Fork Dairy Creek
Location175 MI W Portland Swcl
RouteU.S. Route 26
CountyWashington County
StateOregon
Coordinates45.60846, -123.04427
Functional classRural Principal Arterial - Other

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length129 ft (39.3 m)
Longest span43 ft (13.1 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,858 (2022)
Projected traffic16,850 by 2042
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 26 (hwy 047) WB over East Fork Dairy Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is US 26 (hwy 047) WB over East Fork Dairy Creek 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 September 2024.

How much traffic does US 26 (hwy 047) WB over East Fork Dairy Creek carry?

About 11,858 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is US 26 (hwy 047) WB over East Fork Dairy Creek?

The structure is 129 ft (39.3 m) long with a longest span of 43 ft (13.1 m) and a deck 45 ft wide.

Who owns US 26 (hwy 047) WB over East Fork Dairy Creek?

It is owned by the State Highway Agency.