US Bridges

Firestone over Carneros Creek

Good

Santa Barbara County, California · East of Aero Camino · Structure no. 51C0304

Built
1967
58 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
36 ft
2 main spans
Daily traffic
400
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Firestone over Carneros Creek is a concrete continuous culvert carrying Firestone over Carneros Creek in Santa Barbara County, California. It was built in 1967, so it is 58 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 400 vehicles a day, roughly 30% of them trucks, projected to reach 1,386 by 2042. The structure is 36 ft (11 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFirestone
CrossesCarneros Creek
LocationEast of Aero Camino
RouteCity Street 0
Coordinates34.43111, -119.84752
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length36 ft (11 m)
Longest span17 ft (5.2 m)
Deck width38 ft (11.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2011)
Projected traffic1,386 by 2042
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Firestone over Carneros Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Firestone over Carneros 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 May 2024.

How much traffic does Firestone over Carneros Creek carry?

About 400 vehicles per day (2011 count), of which roughly 30% are trucks.

How long is Firestone over Carneros Creek?

The structure is 36 ft (11 m) long with a longest span of 17 ft (5.2 m) and a deck 38 ft wide.

Who owns Firestone over Carneros Creek?

It is owned by the City or Municipal Highway Agency.