US Bridges

Skyway over Ltl Chico-Butte CR Dv Ch

Good

Butte County, California · 0.4 MI NW Humbug RD · Structure no. 12C0216L

Built
1958
67 years old
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
112 ft
4 main spans
Daily traffic
11,000
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Skyway over Ltl Chico-Butte CR Dv Ch is a concrete continuous slab carrying Skyway over Ltl Chico-Butte CR Dv Ch in Butte County, California. It was built in 1958, so it is 67 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 11,000 vehicles a day, roughly 3% of them trucks, projected to reach 21,023 by 2044. The structure is 112 ft (34.1 m) long and 32 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesSkyway
CrossesLtl Chico-Butte CR Dv Ch
Location0.4 MI NW Humbug RD
RouteCity Street 0
Coordinates39.71321, -121.78149
Functional classUrban Minor Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length112 ft (34.1 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2018)
Projected traffic21,023 by 2044
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Skyway over Ltl Chico-Butte CR Dv Ch built?

It was built in 1958, making it 67 years old in 2025.

What condition is Skyway over Ltl Chico-Butte CR Dv Ch 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 October 2022.

How much traffic does Skyway over Ltl Chico-Butte CR Dv Ch carry?

About 11,000 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Skyway over Ltl Chico-Butte CR Dv Ch?

The structure is 112 ft (34.1 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Skyway over Ltl Chico-Butte CR Dv Ch?

It is owned by the City or Municipal Highway Agency.