US Bridges

HWY 92 over Clatskanie River

Fair

Columbia County, Oregon · 0.5 MI E of HWY 110 JCT · Structure no. 07519 02W 06121

Built
1954
71 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
8,540
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 92 over Clatskanie River is a concrete continuous tee beam carrying HWY 92 over Clatskanie River 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.

It carries about 8,540 vehicles a day, roughly 9% of them trucks, projected to reach 8,600 by 2042. The structure is 130 ft (39.6 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesHWY 92
CrossesClatskanie River
Location0.5 MI E of HWY 110 JCT
RouteU.S. Route 30
CountyColumbia County
StateOregon
Coordinates46.10212, -123.19939
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span50 ft (15.2 m)
Deck width39 ft (11.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,540 (2022)
Projected traffic8,600 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$733,000
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY 92 over Clatskanie River built?

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

What condition is HWY 92 over Clatskanie 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 November 2023.

How much traffic does HWY 92 over Clatskanie River carry?

About 8,540 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is HWY 92 over Clatskanie River?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.2 m) and a deck 39 ft wide.

Who owns HWY 92 over Clatskanie River?

It is owned by the State Highway Agency.