US Bridges

Dayton Avenue over Chehalem Creek

Fair

Yamhill County, Oregon · 0.25 MI SW Newburg · Structure no. 11767F000

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
130 ft
3 main spans
Daily traffic
2,093
2020 count
Owner
County
County Highway Agency

About this bridge

Dayton Avenue over Chehalem Creek is a prestressed concrete slab carrying Dayton Avenue over Chehalem Creek in Yamhill County, Oregon. It was built in 1965, so it is 60 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 5 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 2,093 vehicles a day, roughly 1% of them trucks, projected to reach 2,353 by 2025. The structure is 130 ft (39.6 m) long and 24 ft wide.

Location

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CarriesDayton Avenue
CrossesChehalem Creek
Location0.25 MI SW Newburg
RouteCounty Highway C0119
CountyYamhill County
StateOregon
Coordinates45.29262, -122.9829
Functional classUrban Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.9 US tons
Inventory rating53.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span50 ft (15.2 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,093 (2020)
Projected traffic2,353 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$666,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dayton Avenue over Chehalem Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Dayton Avenue over Chehalem 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 2024.

How much traffic does Dayton Avenue over Chehalem Creek carry?

About 2,093 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Dayton Avenue over Chehalem Creek?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.2 m) and a deck 24 ft wide.

Who owns Dayton Avenue over Chehalem Creek?

It is owned by the County Highway Agency.