US Bridges

US 26 (hwy 047) over West Fork Dairy Creek

Fair

Washington County, Oregon · 7.1 MI W HWY 37 JCT · Structure no. 20945 047 04630

Built
2013
12 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
11,120
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 047) over West Fork Dairy Creek is a prestressed concrete stringer/multi-beam or girder carrying US 26 (hwy 047) over West Fork Dairy Creek in Washington County, Oregon. It was built in 2013, so it is 12 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 11,120 vehicles a day, roughly 12% of them trucks, projected to reach 14,500 by 2042. The structure is 100 ft (30.5 m) long and 47 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 047)
CrossesWest Fork Dairy Creek
Location7.1 MI W HWY 37 JCT
RouteU.S. Route 26
CountyWashington County
StateOregon
Coordinates45.67553, -123.18286
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating54.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length100 ft (30.5 m)
Longest span100 ft (30.5 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,120 (2022)
Projected traffic14,500 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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) over West Fork Dairy Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is US 26 (hwy 047) over West 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 May 2023.

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

About 11,120 vehicles per day (2022 count), of which roughly 12% are trucks.

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

The structure is 100 ft (30.5 m) long with a longest span of 100 ft (30.5 m) and a deck 47 ft wide.

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

It is owned by the State Highway Agency.