US Bridges

US101 (hwy 9) over Austins Point

Fair

Clatsop County, Oregon · 015 MI N Arch Cape Tunnel · Structure no. 01878 009 03405

Built
1933
92 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
133 ft
6 main spans
Daily traffic
5,508
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Austins Point is a wood or timber stringer/multi-beam or girder carrying US101 (hwy 9) over Austins Point in Clatsop County, Oregon. It was built in 1933, so it is 92 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 5,508 vehicles a day, roughly 12% of them trucks, projected to reach 8,490 by 2042. The structure is 133 ft (40.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesUS101 (hwy 9)
CrossesAustins Point
Location015 MI N Arch Cape Tunnel
RouteU.S. Route 101
CountyClatsop County
StateOregon
Coordinates45.8249, -123.961
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length133 ft (40.5 m)
Longest span24 ft (7.2 m)
Deck width30 ft (9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,508 (2022)
Projected traffic8,490 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed6.2 mi (10 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US101 (hwy 9) over Austins Point built?

It was built in 1933, making it 92 years old in 2025.

What condition is US101 (hwy 9) over Austins Point 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 October 2023.

How much traffic does US101 (hwy 9) over Austins Point carry?

About 5,508 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US101 (hwy 9) over Austins Point?

The structure is 133 ft (40.5 m) long with a longest span of 24 ft (7.2 m) and a deck 30 ft wide.

Who owns US101 (hwy 9) over Austins Point?

It is owned by the State Highway Agency.