US Bridges

Dukes Landing Road over Small Stream

Good

Yamhill County, Oregon · 700 MI S Dayton · Structure no. 11793 000

Built
1958
67 years old, rebuilt 1987
Condition
Good
inspected September 2024
Type
Channel Beam
Concrete
Length
46 ft
2 main spans
Daily traffic
31
2020 count
Owner
County
County Highway Agency

About this bridge

Dukes Landing Road over Small Stream is a concrete channel beam carrying Dukes Landing Road over Small Stream in Yamhill County, Oregon. It was built in 1958 and reconstructed in 1987, so it is 67 years old, older 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 31 vehicles a day, roughly 40% of them trucks, projected to reach 36 by 2025. The structure is 46 ft (14 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDukes Landing Road
CrossesSmall Stream
Location700 MI S Dayton
RouteCounty Highway C0474
StateOregon
Coordinates45.12885, -123.03222
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length46 ft (14 m)
Longest span20 ft (6.1 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2020)
Projected traffic36 by 2025
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Dukes Landing Road over Small Stream built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1987.

What condition is Dukes Landing Road over Small Stream 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 September 2024.

How much traffic does Dukes Landing Road over Small Stream carry?

About 31 vehicles per day (2020 count), of which roughly 40% are trucks.

How long is Dukes Landing Road over Small Stream?

The structure is 46 ft (14 m) long with a longest span of 20 ft (6.1 m) and a deck 23 ft wide.

Who owns Dukes Landing Road over Small Stream?

It is owned by the County Highway Agency.