US Bridges

US101 (hwy 9) over Clear Creek

Fair

Tillamook County, Oregon · 028 MI N HWY 130 JCT · Structure no. 00870 009 08868

Built
1922
103 years old
Condition
Fair
inspected January 2023
Type
Tee Beam
Concrete
Length
30 ft
1 main span
Daily traffic
3,496
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Clear Creek is a concrete tee beam carrying US101 (hwy 9) over Clear Creek in Tillamook County, Oregon. It was built in 1922, so it is 103 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 3,496 vehicles a day, roughly 16% of them trucks, projected to reach 3,700 by 2042. The structure is 30 ft (9.1 m) long and 31 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

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CarriesUS101 (hwy 9)
CrossesClear Creek
Location028 MI N HWY 130 JCT
RouteU.S. Route 101
CountyTillamook County
StateOregon
Coordinates45.19202, -123.90018
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,496 (2022)
Projected traffic3,700 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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$154,000
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1922, making it 103 years old in 2025.

What condition is US101 (hwy 9) over Clear 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 January 2023.

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

About 3,496 vehicles per day (2022 count), of which roughly 16% are trucks.

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

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns US101 (hwy 9) over Clear Creek?

It is owned by the State Highway Agency.