US Bridges

State Route 70 over First Street

Good

Yuba County, California · 03-YUB-070-14.08-MVL · Structure no. 16 0038

Built
1960
65 years old
Condition
Good
inspected February 2022
Type
Slab
Concrete
Length
53 ft
1 main span
Daily traffic
37,500
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 70 over First Street is a concrete slab carrying State Route 70 over First Street in Yuba County, California. It was built in 1960, so it is 65 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 37,500 vehicles a day, roughly 12% of them trucks, projected to reach 63,175 by 2040. The structure is 53 ft (16.3 m) long and 118 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesState Route 70
CrossesFirst Street
Location03-YUB-070-14.08-MVL
RouteState Highway 70
Coordinates39.13579, -121.58975
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length53 ft (16.3 m)
Longest span52 ft (15.8 m)
Deck width118 ft (35.9 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,500 (2009)
Projected traffic63,175 by 2040
Trucks12%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 over First Street built?

It was built in 1960, making it 65 years old in 2025.

What condition is State Route 70 over First Street 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 February 2022.

How much traffic does State Route 70 over First Street carry?

About 37,500 vehicles per day (2009 count), of which roughly 12% are trucks.

How long is State Route 70 over First Street?

The structure is 53 ft (16.3 m) long with a longest span of 52 ft (15.8 m) and a deck 118 ft wide.

Who owns State Route 70 over First Street?

It is owned by the State Highway Agency.