US Bridges

S101-N23 Connector over Thousand Oaks Blvd

Good

Ventura County, California · 07-VEN-101-3.16-THOK · Structure no. 52 0416F

Built
1970
55 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
203 ft
3 main spans
Daily traffic
17,701
2019 count
Owner
State
State Highway Agency

About this bridge

S101-N23 Connector over Thousand Oaks Blvd is a concrete continuous box beam or girders - multiple carrying S101-N23 Connector over Thousand Oaks Blvd in Ventura County, California. It was built in 1970, so it is 55 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 17,701 vehicles a day, roughly 6% of them trucks, projected to reach 29,030 by 2042. The structure is 203 ft (61.9 m) long and 41 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesS101-N23 Connector
CrossesThousand Oaks Blvd
Location07-VEN-101-3.16-THOK
RouteU.S. Route 101
Coordinates34.1789, -118.86025
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
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 rating61.4 US tons
Inventory rating44.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length203 ft (61.9 m)
Longest span111 ft (33.8 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,701 (2019)
Projected traffic29,030 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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 S101-N23 Connector over Thousand Oaks Blvd built?

It was built in 1970, making it 55 years old in 2025.

What condition is S101-N23 Connector over Thousand Oaks Blvd 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 June 2024.

How much traffic does S101-N23 Connector over Thousand Oaks Blvd carry?

About 17,701 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is S101-N23 Connector over Thousand Oaks Blvd?

The structure is 203 ft (61.9 m) long with a longest span of 111 ft (33.8 m) and a deck 41 ft wide.

Who owns S101-N23 Connector over Thousand Oaks Blvd?

It is owned by the State Highway Agency.