US Bridges

Scappoose-Vernonia over No Fk Scappoose CR

FairPosted for load

Columbia County, Oregon · 024 MI NW JCT FAP1 · Structure no. 13353A114301783

Built
1954
71 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
2,250
2020 count
Owner
County
County Highway Agency

About this bridge

Scappoose-Vernonia over No Fk Scappoose CR is a concrete continuous slab carrying Scappoose-Vernonia over No Fk Scappoose CR in Columbia County, Oregon. It was built in 1954, so it is 71 years old, older 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. Its operating status is: posted for load restriction.

It carries about 2,250 vehicles a day, roughly 10% of them trucks, projected to reach 2,550 by 2025. The structure is 90 ft (27.4 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesScappoose-Vernonia
CrossesNo Fk Scappoose CR
Location024 MI NW JCT FAP1
RouteCounty Highway A0744
CountyColumbia County
StateOregon
Coordinates45.79034, -122.91142
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18.2 US tons
Inventory rating13.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,250 (2020)
Projected traffic2,550 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$461,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Scappoose-Vernonia over No Fk Scappoose CR built?

It was built in 1954, making it 71 years old in 2025.

What condition is Scappoose-Vernonia over No Fk Scappoose CR 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 Scappoose-Vernonia over No Fk Scappoose CR carry?

About 2,250 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Scappoose-Vernonia over No Fk Scappoose CR?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Scappoose-Vernonia over No Fk Scappoose CR?

It is owned by the County Highway Agency.