US Bridges

State Route 33 over N Fork Matilija Creek

Good

Ventura County, California · 07-VEN-033-15.82 · Structure no. 52 0044

Built
1949
76 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
164 ft
5 main spans
Daily traffic
950
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 33 over N Fork Matilija Creek is a concrete continuous tee beam carrying State Route 33 over N Fork Matilija Creek in Ventura County, California. It was built in 1949, so it is 76 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 950 vehicles a day, roughly 5% of them trucks, projected to reach 1,100 by 2044. The structure is 164 ft (50 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 33
CrossesN Fork Matilija Creek
Location07-VEN-033-15.82
RouteState Highway 33
Coordinates34.48833, -119.30551
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length164 ft (50 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2020)
Projected traffic1,100 by 2044
Trucks5%
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 N Fork Matilija Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is State Route 33 over N Fork Matilija 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 February 2024.

How much traffic does State Route 33 over N Fork Matilija Creek carry?

About 950 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is State Route 33 over N Fork Matilija Creek?

The structure is 164 ft (50 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns State Route 33 over N Fork Matilija Creek?

It is owned by the State Highway Agency.