US Bridges

US 20 (hwy 33) over Wprr

Fair

Benton County, Oregon · 003 MI W of HWY 1W JCT · Structure no. 08617 033 05573

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
175 ft
4 main spans
Daily traffic
22,606
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 (hwy 33) over Wprr is a concrete continuous tee beam carrying US 20 (hwy 33) over Wprr in Benton County, Oregon. It was built in 1960, so it is 65 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 22,606 vehicles a day, roughly 6% of them trucks, projected to reach 22,700 by 2042. The structure is 175 ft (53.3 m) long and 81 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesUS 20 (hwy 33)
CrossesWprr
Location003 MI W of HWY 1W JCT
RouteU.S. Route 20
CountyBenton County
StateOregon
Coordinates44.55633, -123.26861
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.5 US tons
Inventory rating17.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span65 ft (19.8 m)
Deck width81 ft (24.6 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,606 (2022)
Projected traffic22,700 by 2042
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed16.2 mi (26 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 20 (hwy 33) over Wprr built?

It was built in 1960, making it 65 years old in 2025.

What condition is US 20 (hwy 33) 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 May 2023.

How much traffic does US 20 (hwy 33) over Wprr carry?

About 22,606 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is US 20 (hwy 33) over Wprr?

The structure is 175 ft (53.3 m) long with a longest span of 65 ft (19.8 m) and a deck 81 ft wide.

Who owns US 20 (hwy 33) over Wprr?

It is owned by the State Highway Agency.