US Bridges

Oxford Circle over Stewart Slough

Fair

Benton County, Oregon · 0.01 Inter Lancaster · Structure no. 22141 000 00000

Built
2013
12 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
343
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oxford Circle over Stewart Slough is a prestressed concrete slab carrying Oxford Circle over Stewart Slough in Benton County, Oregon. It was built in 2013, so it is 12 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 343 vehicles a day, roughly 10% of them trucks, projected to reach 437 by 2040. The structure is 40 ft (12.2 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesOxford Circle
CrossesStewart Slough
Location0.01 Inter Lancaster
RouteCounty Highway A0752
CountyBenton County
StateOregon
Coordinates44.60361, -123.24008
Functional classRural Major 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic343 (2020)
Projected traffic437 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 Oxford Circle over Stewart Slough built?

It was built in 2013, making it 12 years old in 2025.

What condition is Oxford Circle over Stewart Slough 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 Oxford Circle over Stewart Slough carry?

About 343 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Oxford Circle over Stewart Slough?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns Oxford Circle over Stewart Slough?

It is owned by the City or Municipal Highway Agency.