US Bridges

Scappoose-Vernonia over Elk Creek

Fair

Columbia County, Oregon · 3.09SCAPPOOSE-VERNONIA · Structure no. 21571 306900309

Built
2010
15 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
991
2020 count
Owner
County
County Highway Agency

About this bridge

Scappoose-Vernonia over Elk Creek is a concrete culvert carrying Scappoose-Vernonia over Elk Creek in Columbia 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 991 vehicles a day, roughly 20% of them trucks, projected to reach 1,121 by 2025. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 28.6 mi (46 km).

CarriesScappoose-Vernonia
CrossesElk Creek
Location3.09SCAPPOOSE-VERNONIA
RouteCounty Highway A0744
StateOregon
Coordinates45.86981, -123.12378
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic991 (2020)
Projected traffic1,121 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28.6 mi (46 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 Scappoose-Vernonia over Elk Creek built?

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

What condition is Scappoose-Vernonia over Elk 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 Scappoose-Vernonia over Elk Creek carry?

About 991 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Scappoose-Vernonia over Elk Creek?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m).

Who owns Scappoose-Vernonia over Elk Creek?

It is owned by the County Highway Agency.