US Bridges

River Road over Big Chico Creek

Good

Butte County, California · 1.0 MI N/O Chico River RD · Structure no. 12C0010

Built
2001
24 years old
Condition
Good
inspected April 2022
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
204 ft
3 main spans
Daily traffic
563
2018 count
Owner
County
County Highway Agency

About this bridge

River Road over Big Chico Creek is a concrete continuous box beam or girders - multiple carrying River Road over Big Chico Creek in Butte County, California. It was built in 2001, so it is 24 years old, younger 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 563 vehicles a day, roughly 11% of them trucks, projected to reach 511 by 2040. The structure is 204 ft (62.3 m) long and 31 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesRiver Road
CrossesBig Chico Creek
Location1.0 MI N/O Chico River RD
RouteCounty Highway 0
Coordinates39.70439, -121.93905
Functional classRural Local

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 inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length204 ft (62.3 m)
Longest span80 ft (24.4 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic563 (2018)
Projected traffic511 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was River Road over Big Chico Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is River Road over Big Chico 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 April 2022.

How much traffic does River Road over Big Chico Creek carry?

About 563 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is River Road over Big Chico Creek?

The structure is 204 ft (62.3 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.

Who owns River Road over Big Chico Creek?

It is owned by the County Highway Agency.