US Bridges

State Route 70 over South Honcut Creek

Good

Yuba County, California · 03-YUB-070-25.81 · Structure no. 16 0020

Built
1941
84 years old, rebuilt 1987
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
107 ft
4 main spans
Daily traffic
9,700
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 70 over South Honcut Creek is a concrete continuous slab carrying State Route 70 over South Honcut Creek in Yuba County, California. It was built in 1941 and reconstructed in 1987, so it is 84 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 9,700 vehicles a day, roughly 13% of them trucks, projected to reach 20,049 by 2044. The structure is 107 ft (32.6 m) long and 44 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesState Route 70
CrossesSouth Honcut Creek
Location03-YUB-070-25.81
RouteState Highway 70
Coordinates39.30668, -121.59529
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length107 ft (32.6 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,700 (2019)
Projected traffic20,049 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 70 over South Honcut Creek built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1987.

What condition is State Route 70 over South Honcut Creek 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 over South Honcut Creek carry?

About 9,700 vehicles per day (2019 count), of which roughly 13% are trucks.

How long is State Route 70 over South Honcut Creek?

The structure is 107 ft (32.6 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns State Route 70 over South Honcut Creek?

It is owned by the State Highway Agency.