US Bridges

US101 (hwy 9) over Tiger Creek

FairPosted for load

Tillamook County, Oregon · 038 MI N Beaver · Structure no. 04651 009 07664

Built
1919
106 years old, rebuilt 1960
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
28 ft
1 main span
Daily traffic
5,337
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Tiger Creek is a concrete tee beam carrying US101 (hwy 9) over Tiger Creek in Tillamook County, Oregon. It was built in 1919 and reconstructed in 1960, so it is 106 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 other load-capacity restriction.

It carries about 5,337 vehicles a day, roughly 16% of them trucks, projected to reach 5,400 by 2042. The structure is 28 ft (8.5 m) long and 31 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesUS101 (hwy 9)
CrossesTiger Creek
Location038 MI N Beaver
RouteU.S. Route 101
CountyTillamook County
StateOregon
Coordinates45.3224, -123.83893
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.4 US tons
Inventory rating15.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,337 (2022)
Projected traffic5,400 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$143,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US101 (hwy 9) over Tiger Creek built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1960.

What condition is US101 (hwy 9) over Tiger 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 March 2024.

How much traffic does US101 (hwy 9) over Tiger Creek carry?

About 5,337 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is US101 (hwy 9) over Tiger Creek?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns US101 (hwy 9) over Tiger Creek?

It is owned by the State Highway Agency.