US Bridges

Silverton Road over Little Pudding River

Good

Marion County, Oregon · 02.0 East of Cordon RD · Structure no. 23918 002600327

Built
2022
3 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
136 ft
1 main span
Daily traffic
12,837
2020 count
Owner
County
County Highway Agency

About this bridge

Silverton Road over Little Pudding River is a prestressed concrete stringer/multi-beam or girder carrying Silverton Road over Little Pudding River in Marion County, Oregon. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,837 vehicles a day, roughly 4% of them trucks, projected to reach 16,931 by 2025. The structure is 136 ft (41.5 m) long and 66 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSilverton Road
CrossesLittle Pudding River
Location02.0 East of Cordon RD
RouteCounty Highway C0026
StateOregon
Coordinates44.98487, -122.9318
Functional classRural Principal Arterial - Other

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.9 US tons
Inventory rating76.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length136 ft (41.5 m)
Longest span126 ft (38.4 m)
Deck width66 ft (20 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,837 (2020)
Projected traffic16,931 by 2025
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Silverton Road over Little Pudding River built?

It was built in 2022, making it 3 years old in 2025.

What condition is Silverton Road over Little Pudding River 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 August 2023.

How much traffic does Silverton Road over Little Pudding River carry?

About 12,837 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Silverton Road over Little Pudding River?

The structure is 136 ft (41.5 m) long with a longest span of 126 ft (38.4 m) and a deck 66 ft wide.

Who owns Silverton Road over Little Pudding River?

It is owned by the County Highway Agency.