US Bridges

14 S 06 W 34.01: over South Fork Alsea River

FairPosted for load

Benton County, Oregon · 0.9 Miles S of HWY 34 (mp · Structure no. 0000000L1406284

Built
1962
63 years old
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
24 ft
1 main span
Daily traffic
100
2024 count
Owner
Federal
Bureau of Land Management

About this bridge

14 S 06 W 34.01: over South Fork Alsea River is a steel culvert carrying 14 S 06 W 34.01: over South Fork Alsea River in Benton County, Oregon. It was built in 1962, so it is 63 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 100 vehicles a day, roughly 1% of them trucks, projected to reach 150 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Carries14 S 06 W 34.01:
CrossesSouth Fork Alsea River
Location0.9 Miles S of HWY 34 (mp
RouteFederal Lands Road 0
StateOregon
Coordinates44.30194, -123.46333
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic150 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Land Management
Maintained byBureau of Land Management
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 14 S 06 W 34.01: over South Fork Alsea River built?

It was built in 1962, making it 63 years old in 2025.

What condition is 14 S 06 W 34.01: over South Fork Alsea 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 March 2024.

How much traffic does 14 S 06 W 34.01: over South Fork Alsea River carry?

About 100 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is 14 S 06 W 34.01: over South Fork Alsea River?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns 14 S 06 W 34.01: over South Fork Alsea River?

It is owned by the Bureau of Land Management.