US Bridges

Ridge RD over Oregon Creek

Fair

Yuba County, California · 0.1 MI E of S.R. 49 · Structure no. 16C0050

Built
1969
56 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
540
2011 count
Owner
County
County Highway Agency

About this bridge

Ridge RD over Oregon Creek is a concrete continuous tee beam carrying Ridge RD over Oregon Creek in Yuba County, California. It was built in 1969, so it is 56 years old, older than the California average of 54.8 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.

It carries about 540 vehicles a day, roughly 3% of them trucks, projected to reach 981 by 2045. The structure is 153 ft (46.6 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRidge RD
CrossesOregon Creek
Location0.1 MI E of S.R. 49
RouteCounty Highway 0
Coordinates39.41337, -121.07009
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span54 ft (16.5 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2011)
Projected traffic981 by 2045
Trucks3%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ridge RD over Oregon Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Ridge RD over Oregon Creek 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 2023.

How much traffic does Ridge RD over Oregon Creek carry?

About 540 vehicles per day (2011 count), of which roughly 3% are trucks.

How long is Ridge RD over Oregon Creek?

The structure is 153 ft (46.6 m) long with a longest span of 54 ft (16.5 m) and a deck 33 ft wide.

Who owns Ridge RD over Oregon Creek?

It is owned by the County Highway Agency.