US Bridges

Augusta ST over San Antonio Creek

Fair

Santa Barbara County, California · 0.2 MI N of SH 135 · Structure no. 51C0223

Built
1962
63 years old
Condition
Fair
inspected May 2023
Type
Slab
Wood or Timber
Length
30 ft
1 main span
Daily traffic
428
2006 count
Owner
County
County Highway Agency

About this bridge

Augusta ST over San Antonio Creek is a wood or timber slab carrying Augusta ST over San Antonio Creek in Santa Barbara County, California. It was built in 1962, so it is 63 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 428 vehicles a day, roughly 6% of them trucks, projected to reach 520 by 2041. The structure is 30 ft (9 m) long and 13 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesAugusta ST
CrossesSan Antonio Creek
Location0.2 MI N of SH 135
RouteCounty Highway 0
CountySanta Barbara County
StateCalifornia
Coordinates34.74454, -120.27591
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9 m)
Longest span29 ft (8.8 m)
Deck width13 ft (4.1 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic428 (2006)
Projected traffic520 by 2041
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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 Augusta ST over San Antonio Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Augusta ST 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 May 2023.

How much traffic does Augusta ST over San Antonio Creek carry?

About 428 vehicles per day (2006 count), of which roughly 6% are trucks.

How long is Augusta ST over San Antonio Creek?

The structure is 30 ft (9 m) long with a longest span of 29 ft (8.8 m) and a deck 13 ft wide.

Who owns Augusta ST over San Antonio Creek?

It is owned by the County Highway Agency.