US Bridges

State Route 33 over Adobe Canyon

Good

Ventura County, California · 07-VEN-033-39.03 · Structure no. 52 0084

Built
1933
92 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
145 ft
7 main spans
Daily traffic
340
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 33 over Adobe Canyon is a wood or timber stringer/multi-beam or girder carrying State Route 33 over Adobe Canyon in Ventura County, California. It was built in 1933, so it is 92 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 145 ft (44.2 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 33
CrossesAdobe Canyon
Location07-VEN-033-39.03
RouteState Highway 33
Coordinates34.61132, -119.36796
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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans7
Design loadUnknown
Structure length145 ft (44.2 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 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 Adobe Canyon built?

It was built in 1933, making it 92 years old in 2025.

What condition is State Route 33 over Adobe Canyon 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 Adobe Canyon carry?

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

How long is State Route 33 over Adobe Canyon?

The structure is 145 ft (44.2 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns State Route 33 over Adobe Canyon?

It is owned by the State Highway Agency.