US Bridges

US101 (hwy 9) over Ecola Creek

Fair

Clatsop County, Oregon · 037 MI S Cannon Beach JCT · Structure no. 06713 009 02870

Built
1952
73 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
156 ft
8 main spans
Daily traffic
7,698
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Ecola Creek is a concrete continuous slab carrying US101 (hwy 9) over Ecola Creek in Clatsop County, Oregon. It was built in 1952, so it is 73 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 7,698 vehicles a day, roughly 12% of them trucks, projected to reach 7,800 by 2042. The structure is 156 ft (47.5 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS101 (hwy 9)
CrossesEcola Creek
Location037 MI S Cannon Beach JCT
RouteU.S. Route 101
CountyClatsop County
StateOregon
Coordinates45.89939, -123.95389
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 protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,698 (2022)
Projected traffic7,800 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$879,000
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1952, making it 73 years old in 2025.

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

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

About 7,698 vehicles per day (2022 count), of which roughly 12% are trucks.

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

The structure is 156 ft (47.5 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns US101 (hwy 9) over Ecola Creek?

It is owned by the State Highway Agency.