US Bridges

Jack London RD over Stewart Slough

Fair

Benton County, Oregon · 0.1 MI S/O Walnut St. · Structure no. 22143 000 00000

Built
2013
12 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
343
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Jack London RD over Stewart Slough is a concrete continuous culvert carrying Jack London RD 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 24 ft (7.3 m) long and 45 ft wide.

Location

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CarriesJack London RD
CrossesStewart Slough
Location0.1 MI S/O Walnut St.
RouteCity Street 0
CountyBenton County
StateOregon
Coordinates44.59133, -123.2471
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width45 ft (13.7 m)
Roadway width32 ft (9.8 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 Jack London RD over Stewart Slough built?

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

What condition is Jack London RD 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 Jack London RD over Stewart Slough carry?

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

How long is Jack London RD over Stewart Slough?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 45 ft wide.

Who owns Jack London RD over Stewart Slough?

It is owned by the City or Municipal Highway Agency.