US Bridges

Oroville Chico HWY over Butte Creek

Fair

Butte County, California · 1.1 MI E Midway RD · Structure no. 12C0033

Built
1986
39 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
280 ft
3 main spans
Daily traffic
332
2018 count
Owner
County
County Highway Agency

About this bridge

Oroville Chico HWY over Butte Creek is a prestressed concrete continuous box beam or girders - multiple carrying Oroville Chico HWY over Butte Creek in Butte County, California. It was built in 1986, so it is 39 years old, younger 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 332 vehicles a day, roughly 18% of them trucks, projected to reach 1,552 by 2046. The structure is 280 ft (85.3 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesOroville Chico HWY
CrossesButte Creek
Location1.1 MI E Midway RD
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.67834, -121.77827
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length280 ft (85.3 m)
Longest span108 ft (32.9 m)
Deck width40 ft (12.3 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic332 (2018)
Projected traffic1,552 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Oroville Chico HWY over Butte Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Oroville Chico HWY over Butte 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 May 2024.

How much traffic does Oroville Chico HWY over Butte Creek carry?

About 332 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is Oroville Chico HWY over Butte Creek?

The structure is 280 ft (85.3 m) long with a longest span of 108 ft (32.9 m) and a deck 40 ft wide.

Who owns Oroville Chico HWY over Butte Creek?

It is owned by the County Highway Agency.