US Bridges

NW 11th ST over Dixon CR

Good

Benton County, Oregon · .2 MI S of Buchanan Ave · Structure no. 03C13A000 00000

Built
1981
44 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
2,393
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

NW 11th ST over Dixon CR is a prestressed concrete slab carrying NW 11th ST over Dixon CR in Benton County, Oregon. It was built in 1981, so it is 44 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,393 vehicles a day, roughly 10% of them trucks, projected to reach 3,448 by 2040. The structure is 28 ft (8.5 m) long and 53 ft wide.

CarriesNW 11th ST
CrossesDixon CR
Location.2 MI S of Buchanan Ave
RouteCity Street 0
StateOregon
Coordinates44.57516, -123.2651
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width53 ft (16.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,393 (2020)
Projected traffic3,448 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 NW 11th ST over Dixon CR built?

It was built in 1981, making it 44 years old in 2025.

What condition is NW 11th ST over Dixon CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does NW 11th ST over Dixon CR carry?

About 2,393 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is NW 11th ST over Dixon CR?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 53 ft wide.

Who owns NW 11th ST over Dixon CR?

It is owned by the City or Municipal Highway Agency.