US Bridges

State Route 33 over Billy Creek

Good

Ventura County, California · 07-VEN-033-47.91 · Structure no. 52 0085

Built
1953
72 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
340
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 33 over Billy Creek is a concrete slab carrying State Route 33 over Billy Creek in Ventura County, California. It was built in 1953, so it is 72 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 340 vehicles a day, roughly 4% of them trucks, projected to reach 400 by 2042. The structure is 28 ft (8.5 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 33
CrossesBilly Creek
Location07-VEN-033-47.91
RouteState Highway 33
Coordinates34.6787, -119.35816
Functional classRural 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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2020)
Projected traffic400 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 33 over Billy Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is State Route 33 over Billy 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 State Route 33 over Billy Creek carry?

About 340 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is State Route 33 over Billy Creek?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns State Route 33 over Billy Creek?

It is owned by the State Highway Agency.