US Bridges

Jackson School RD over US 26 (hwy 047)

Fair

Washington County, Oregon · 15.75 MI W Portland Cc · Structure no. 19592 047 05870

Built
2006
19 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
277 ft
2 main spans
Daily traffic
9,717
2022 count
Owner
State
State Highway Agency

About this bridge

Jackson School RD over US 26 (hwy 047) is a prestressed concrete continuous stringer/multi-beam or girder carrying Jackson School RD over US 26 (hwy 047) in Washington County, Oregon. It was built in 2006, so it is 19 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 9,717 vehicles a day, roughly 2% of them trucks, projected to reach 4,808 by 2030. The structure is 277 ft (84.5 m) long and 82 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesJackson School RD
CrossesUS 26 (hwy 047)
Location15.75 MI W Portland Cc
RouteState Highway 0
CountyWashington County
StateOregon
Coordinates45.57976, -122.96817
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 rating30 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length277 ft (84.5 m)
Longest span139 ft (42.5 m)
Deck width82 ft (25.1 m)
Roadway width79 ft (24 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,717 (2022)
Projected traffic4,808 by 2030
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 Jackson School RD over US 26 (hwy 047) built?

It was built in 2006, making it 19 years old in 2025.

What condition is Jackson School RD over US 26 (hwy 047) 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 Jackson School RD over US 26 (hwy 047) carry?

About 9,717 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Jackson School RD over US 26 (hwy 047)?

The structure is 277 ft (84.5 m) long with a longest span of 139 ft (42.5 m) and a deck 82 ft wide.

Who owns Jackson School RD over US 26 (hwy 047)?

It is owned by the State Highway Agency.