US Bridges

SW 35th ST over Oak CR

Fair

Benton County, Oregon · 00.1 S of Washington Way · Structure no. 07T22A000 00122

Built
1978
47 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
5,930
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

SW 35th ST over Oak CR is a prestressed concrete slab carrying SW 35th ST over Oak CR in Benton County, Oregon. It was built in 1978, so it is 47 years old, younger 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 5,930 vehicles a day, roughly 10% of them trucks, projected to reach 7,957 by 2040. The structure is 50 ft (15.2 m) long and 56 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSW 35th ST
CrossesOak CR
Location00.1 S of Washington Way
RouteCity Street 0
StateOregon
Coordinates44.5603, -123.2897
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.9 US tons
Inventory rating64.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,930 (2020)
Projected traffic7,957 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 35th ST over Oak CR built?

It was built in 1978, making it 47 years old in 2025.

What condition is SW 35th ST over Oak CR 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 2024.

How much traffic does SW 35th ST over Oak CR carry?

About 5,930 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is SW 35th ST over Oak CR?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 56 ft wide.

Who owns SW 35th ST over Oak CR?

It is owned by the City or Municipal Highway Agency.