US Bridges

U.S. Highway 101 over Conejo School RD

Fair

Ventura County, California · 07-VEN-101-2.25-THOK · Structure no. 52 0274

Built
1966
59 years old, rebuilt 2016
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
193,000
2017 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Conejo School RD is a concrete continuous tee beam carrying U.S. Highway 101 over Conejo School RD in Ventura County, California. It was built in 1966 and reconstructed in 2016, so it is 59 years old, older 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 193,000 vehicles a day, roughly 9% of them trucks, projected to reach 263,495 by 2042. The structure is 123 ft (37.5 m) long and 191 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesU.S. Highway 101
CrossesConejo School RD
Location07-VEN-101-2.25-THOK
RouteU.S. Route 101
Coordinates34.17181, -118.84604
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating43.2 US tons
Inventory rating33.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length123 ft (37.5 m)
Longest span55 ft (16.8 m)
Deck width191 ft (58.1 m)
Roadway width186 ft (56.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic193,000 (2017)
Projected traffic263,495 by 2042
Trucks9%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. Highway 101 over Conejo School RD built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2016.

What condition is U.S. Highway 101 over Conejo School RD 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 June 2024.

How much traffic does U.S. Highway 101 over Conejo School RD carry?

About 193,000 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is U.S. Highway 101 over Conejo School RD?

The structure is 123 ft (37.5 m) long with a longest span of 55 ft (16.8 m) and a deck 191 ft wide.

Who owns U.S. Highway 101 over Conejo School RD?

It is owned by the State Highway Agency.