US Bridges

Or 18 (hwy 39) over Wprr

Fair

Yamhill County, Oregon · 150 MI E Polk Yam CO LN · Structure no. 08688 039 04479

Built
1964
61 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
170 ft
3 main spans
Daily traffic
15,252
2022 count
Owner
State
State Highway Agency

About this bridge

Or 18 (hwy 39) over Wprr is a concrete continuous tee beam carrying Or 18 (hwy 39) over Wprr in Yamhill County, Oregon. It was built in 1964, so it is 61 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 15,252 vehicles a day, roughly 3% of them trucks, projected to reach 21,300 by 2042. The structure is 170 ft (51.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesOr 18 (hwy 39)
CrossesWprr
Location150 MI E Polk Yam CO LN
RouteState Highway 18
CountyYamhill County
StateOregon
Coordinates45.1909, -123.20104
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span66 ft (20.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,252 (2022)
Projected traffic21,300 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$871,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Or 18 (hwy 39) over Wprr built?

It was built in 1964, making it 61 years old in 2025.

What condition is Or 18 (hwy 39) over Wprr 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 November 2024.

How much traffic does Or 18 (hwy 39) over Wprr carry?

About 15,252 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Or 18 (hwy 39) over Wprr?

The structure is 170 ft (51.8 m) long with a longest span of 66 ft (20.1 m) and a deck 33 ft wide.

Who owns Or 18 (hwy 39) over Wprr?

It is owned by the State Highway Agency.