US Bridges

Scholls Ferry RD over Tualatin River

Fair

Washington County, Oregon · 01.2 MI NE HWY 140 JCT · Structure no. 20295 143000122

Built
2008
17 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
578 ft
5 main spans
Daily traffic
8,144
2020 count
Owner
County
County Highway Agency

About this bridge

Scholls Ferry RD over Tualatin River is a prestressed concrete stringer/multi-beam or girder carrying Scholls Ferry RD over Tualatin River in Washington County, Oregon. It was built in 2008, so it is 17 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 8,144 vehicles a day, roughly 10% of them trucks, projected to reach 8,894 by 2025. The structure is 578 ft (176.3 m) long and 43 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesScholls Ferry RD
CrossesTualatin River
Location01.2 MI NE HWY 140 JCT
RouteCounty Highway C0348
CountyWashington County
StateOregon
Coordinates45.41465, -122.92101
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length578 ft (176.3 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,144 (2020)
Projected traffic8,894 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Scholls Ferry RD over Tualatin River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Scholls Ferry RD over Tualatin River 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 July 2024.

How much traffic does Scholls Ferry RD over Tualatin River carry?

About 8,144 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Scholls Ferry RD over Tualatin River?

The structure is 578 ft (176.3 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns Scholls Ferry RD over Tualatin River?

It is owned by the County Highway Agency.