US Bridges

Timber Road over E Fk Nehalem River

Fair

Columbia County, Oregon · 026 MI SW HWY 47 JCT · Structure no. 01327A307401786

Built
1966
59 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
194 ft
3 main spans
Daily traffic
338
2020 count
Owner
County
County Highway Agency

About this bridge

Timber Road over E Fk Nehalem River is a concrete continuous box beam or girders - single or spread carrying Timber Road over E Fk Nehalem River in Columbia County, Oregon. It was built in 1966, so it is 59 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.

It carries about 338 vehicles a day, roughly 10% of them trucks, projected to reach 343 by 2025. The structure is 194 ft (59.1 m) long and 34 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesTimber Road
CrossesE Fk Nehalem River
Location026 MI SW HWY 47 JCT
RouteCounty Highway A0690
StateOregon
Coordinates45.83302, -123.25327
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 rating34.3 US tons
Inventory rating26.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length194 ft (59.1 m)
Longest span98 ft (29.9 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic338 (2020)
Projected traffic343 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Timber Road over E Fk Nehalem River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Timber Road over E Fk Nehalem 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 May 2023.

How much traffic does Timber Road over E Fk Nehalem River carry?

About 338 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Timber Road over E Fk Nehalem River?

The structure is 194 ft (59.1 m) long with a longest span of 98 ft (29.9 m) and a deck 34 ft wide.

Who owns Timber Road over E Fk Nehalem River?

It is owned by the County Highway Agency.