US Bridges

State Route 33 over N Fork Matilija Creek

Good

Ventura County, California · 07-VEN-033-18.84 · Structure no. 52 0441

Built
2000
25 years old
Condition
Good
inspected May 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
570
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 33 over N Fork Matilija Creek is a prestressed concrete box beam or girders - multiple carrying State Route 33 over N Fork Matilija Creek in Ventura County, California. It was built in 2000, so it is 25 years old, younger 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 570 vehicles a day, roughly 4% of them trucks, projected to reach 650 by 2042. The structure is 100 ft (30.5 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesState Route 33
CrossesN Fork Matilija Creek
Location07-VEN-033-18.84
RouteState Highway 33
CountyVentura County
StateCalifornia
Coordinates34.50792, -119.27529
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 protection9 ExcellentNo problems noted.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length100 ft (30.5 m)
Longest span97 ft (29.7 m)
Deck width29 ft (8.8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic570 (2020)
Projected traffic650 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 N Fork Matilija Creek built?

It was built in 2000, making it 25 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 May 2022.

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

About 570 vehicles per day (2020 count), of which roughly 4% are trucks.

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

The structure is 100 ft (30.5 m) long with a longest span of 97 ft (29.7 m) and a deck 29 ft wide.

Who owns State Route 33 over N Fork Matilija Creek?

It is owned by the State Highway Agency.