US Bridges

Lardon RD over Little Pudding River

FairPosted for load

Marion County, Oregon · 023M E Cordon-Silverton Y · Structure no. 05549A735

Built
1956
69 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
75 ft
3 main spans
Daily traffic
2,421
2020 count
Owner
County
County Highway Agency

About this bridge

Lardon RD over Little Pudding River is a concrete tee beam carrying Lardon RD over Little Pudding River in Marion County, Oregon. It was built in 1956, so it is 69 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 2,421 vehicles a day, roughly 3% of them trucks, projected to reach 2,721 by 2025. The structure is 75 ft (22.9 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesLardon RD
CrossesLittle Pudding River
Location023M E Cordon-Silverton Y
RouteCounty Highway C0735
StateOregon
Coordinates44.96987, -122.91365
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.3 US tons
Inventory rating24.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,421 (2020)
Projected traffic2,721 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

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 Lardon RD over Little Pudding River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Lardon RD over Little Pudding River 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 August 2024.

How much traffic does Lardon RD over Little Pudding River carry?

About 2,421 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Lardon RD over Little Pudding River?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.

Who owns Lardon RD over Little Pudding River?

It is owned by the County Highway Agency.