US Bridges

State Route 70 WB over UP RR BNSF RY Plumas-Ar

Good

Yuba County, California · 03-YUB-070-R3.96 · Structure no. 16 0039L

Built
1967
58 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
304 ft
4 main spans
Daily traffic
8,000
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 70 WB over UP RR BNSF RY Plumas-Ar is a concrete continuous box beam or girders - multiple carrying State Route 70 WB over UP RR BNSF RY Plumas-Ar in Yuba County, California. It was built in 1967, so it is 58 years old, older than the California average of 54.8 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 8,000 vehicles a day, roughly 7% of them trucks, projected to reach 17,818 by 2042. The structure is 304 ft (92.8 m) long and 42 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesState Route 70 WB
CrossesUP RR BNSF RY Plumas-Ar
Location03-YUB-070-R3.96
RouteState Highway 70
Coordinates39.02899, -121.54591
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating41.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length304 ft (92.8 m)
Longest span91 ft (27.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2019)
Projected traffic17,818 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 70 WB over UP RR BNSF RY Plumas-Ar built?

It was built in 1967, making it 58 years old in 2025.

What condition is State Route 70 WB over UP RR BNSF RY Plumas-Ar 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 March 2024.

How much traffic does State Route 70 WB over UP RR BNSF RY Plumas-Ar carry?

About 8,000 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is State Route 70 WB over UP RR BNSF RY Plumas-Ar?

The structure is 304 ft (92.8 m) long with a longest span of 91 ft (27.7 m) and a deck 42 ft wide.

Who owns State Route 70 WB over UP RR BNSF RY Plumas-Ar?

It is owned by the State Highway Agency.