US Bridges

Grand Ave over San Antonio Creek

Good

Ventura County, California · 0.4 MI E Gridley RD · Structure no. 52C0192

Built
1945
80 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
136 ft
7 main spans
Daily traffic
2,300
2022 count
Owner
County
County Highway Agency

About this bridge

Grand Ave over San Antonio Creek is a concrete continuous slab carrying Grand Ave over San Antonio Creek in Ventura County, California. It was built in 1945, so it is 80 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 2,300 vehicles a day, roughly 2% of them trucks, projected to reach 3,113 by 2046. The structure is 136 ft (41.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGrand Ave
CrossesSan Antonio Creek
Location0.4 MI E Gridley RD
RouteCounty Highway 0
Coordinates34.45424, -119.22201
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating23.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadUnknown
Structure length136 ft (41.5 m)
Longest span24 ft (7.3 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2022)
Projected traffic3,113 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Grand Ave over San Antonio Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is Grand Ave 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 Grand Ave over San Antonio Creek carry?

About 2,300 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Grand Ave over San Antonio Creek?

The structure is 136 ft (41.5 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.

Who owns Grand Ave over San Antonio Creek?

It is owned by the County Highway Agency.