US Bridges

San Antonio Road over San Antonio Creek

Fair

Santa Barbara County, California · Continue North on CA-1 (d · Structure no. AFCAXUMU21320

Built
1969
56 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
80 ft
2 main spans
Daily traffic
750
2014 count
Owner
Federal
Air Force

About this bridge

San Antonio Road over San Antonio Creek is a concrete continuous slab carrying San Antonio Road over San Antonio Creek in Santa Barbara County, California. It was built in 1969, so it is 56 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 750 vehicles a day, projected to reach 1,000 by 2034. The structure is 80 ft (24.4 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSan Antonio Road
CrossesSan Antonio Creek
LocationContinue North on CA-1 (d
RouteFederal Lands Road 0
CountySanta Barbara County
StateCalifornia
Coordinates34.78242, -120.53037
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length80 ft (24.4 m)
Longest span40 ft (12.2 m)
Deck width34 ft (10.4 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2014)
Projected traffic1,000 by 2034
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerAir Force
Maintained byAir Force
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$113,000
NavigationNo navigation control on waterway

Frequently asked questions

When was San Antonio Road over San Antonio Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is San Antonio Road over San Antonio 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 August 2023.

How much traffic does San Antonio Road over San Antonio Creek carry?

About 750 vehicles per day (2014 count).

How long is San Antonio Road over San Antonio Creek?

The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 34 ft wide.

Who owns San Antonio Road over San Antonio Creek?

It is owned by the Air Force.