US Bridges

US 20 (hwy 33) over Harris Road & Wprr

FairPosted for load

Benton County, Oregon · 05.0 MI W of Philomath · Structure no. 01205A033 04568

Built
1927
98 years old, rebuilt 1967
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete
Length
212 ft
6 main spans
Daily traffic
9,235
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 (hwy 33) over Harris Road & Wprr is a concrete tee beam carrying US 20 (hwy 33) over Harris Road & Wprr in Benton County, Oregon. It was built in 1927 and reconstructed in 1967, so it is 98 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. Its operating status is: posted for other load-capacity restriction.

It carries about 9,235 vehicles a day, roughly 6% of them trucks, projected to reach 9,300 by 2042. The structure is 212 ft (64.5 m) long and 42 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesUS 20 (hwy 33)
CrossesHarris Road & Wprr
Location05.0 MI W of Philomath
RouteU.S. Route 20
CountyBenton County
StateOregon
Coordinates44.5862, -123.4288
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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length212 ft (64.5 m)
Longest span43 ft (13.1 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,235 (2022)
Projected traffic9,300 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed29.8 mi (48 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 Harris Road & Wprr built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1967.

What condition is US 20 (hwy 33) over Harris Road & 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 July 2023.

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

About 9,235 vehicles per day (2022 count), of which roughly 6% are trucks.

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

The structure is 212 ft (64.5 m) long with a longest span of 43 ft (13.1 m) and a deck 42 ft wide.

Who owns US 20 (hwy 33) over Harris Road & Wprr?

It is owned by the State Highway Agency.