US Bridges

State Route 33 over Munson Canyon Creek

Fair

Ventura County, California · 07-VEN-033-33.80 · Structure no. 52 0081

Built
1986
39 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
96 ft
1 main span
Daily traffic
340
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 33 over Munson Canyon Creek is a concrete box beam or girders - multiple carrying State Route 33 over Munson Canyon Creek in Ventura County, California. It was built in 1986, so it is 39 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 340 vehicles a day, roughly 5% of them trucks, projected to reach 400 by 2042. The structure is 96 ft (29.3 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 33
CrossesMunson Canyon Creek
Location07-VEN-033-33.80
RouteState Highway 33
Coordinates34.59034, -119.2915
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length96 ft (29.3 m)
Longest span94 ft (28.5 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2020)
Projected traffic400 by 2042
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 Munson Canyon Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is State Route 33 over Munson Canyon Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does State Route 33 over Munson Canyon Creek carry?

About 340 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is State Route 33 over Munson Canyon Creek?

The structure is 96 ft (29.3 m) long with a longest span of 94 ft (28.5 m) and a deck 35 ft wide.

Who owns State Route 33 over Munson Canyon Creek?

It is owned by the State Highway Agency.