US Bridges

Cathedral Oaks RD over San Antonio Creek

Good

Santa Barbara County, California · @ Turnpike Road · Structure no. 51C0373

Built
2016
9 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
9,272
2011 count
Owner
County
County Highway Agency

About this bridge

Cathedral Oaks RD over San Antonio Creek is a prestressed concrete box beam or girders - multiple carrying Cathedral Oaks RD over San Antonio Creek in Santa Barbara County, California. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 9,272 vehicles a day, roughly 3% of them trucks, projected to reach 19,431 by 2046. The structure is 75 ft (22.9 m) long and 74 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCathedral Oaks RD
CrossesSan Antonio Creek
Location@ Turnpike Road
RouteCounty Highway 0
Coordinates34.45139, -119.79056
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span71 ft (21.5 m)
Deck width74 ft (22.7 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,272 (2011)
Projected traffic19,431 by 2046
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 Cathedral Oaks RD over San Antonio Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Cathedral Oaks RD over San Antonio 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 August 2024.

How much traffic does Cathedral Oaks RD over San Antonio Creek carry?

About 9,272 vehicles per day (2011 count), of which roughly 3% are trucks.

How long is Cathedral Oaks RD over San Antonio Creek?

The structure is 75 ft (22.9 m) long with a longest span of 71 ft (21.5 m) and a deck 74 ft wide.

Who owns Cathedral Oaks RD over San Antonio Creek?

It is owned by the County Highway Agency.