US Bridges

Vallombrosa Ave over Big Chico Creek

Fair

Butte County, California · Btw 1st ST & Memorial Wy · Structure no. 12C0277

Built
1949
76 years old, rebuilt 1998
Condition
Fair
inspected October 2024
Type
Arch - Deck
Concrete
Length
63 ft
1 main span
Daily traffic
15,000
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Vallombrosa Ave over Big Chico Creek is a concrete arch - deck carrying Vallombrosa Ave over Big Chico Creek in Butte County, California. It was built in 1949 and reconstructed in 1998, so it is 76 years old, older 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 6 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 15,000 vehicles a day, roughly 2% of them trucks, projected to reach 22,537 by 2042. The structure is 63 ft (19.1 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesVallombrosa Ave
CrossesBig Chico Creek
LocationBtw 1st ST & Memorial Wy
RouteCity Street 0
CountyButte County
StateCalifornia
Coordinates39.73204, -121.83791
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length63 ft (19.1 m)
Longest span51 ft (15.5 m)
Deck width50 ft (15.2 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2018)
Projected traffic22,537 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Vallombrosa Ave over Big Chico Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1998.

What condition is Vallombrosa Ave over Big Chico 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 October 2024.

How much traffic does Vallombrosa Ave over Big Chico Creek carry?

About 15,000 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Vallombrosa Ave over Big Chico Creek?

The structure is 63 ft (19.1 m) long with a longest span of 51 ft (15.5 m) and a deck 50 ft wide.

Who owns Vallombrosa Ave over Big Chico Creek?

It is owned by the City or Municipal Highway Agency.