US Bridges

N101-N23 Connector over Thousand Oaks Blvd

Good

Ventura County, California · 07-VEN-101-3.14-THOK · Structure no. 52 0307G

Built
1970
55 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
221 ft
3 main spans
Daily traffic
23,801
2019 count
Owner
State
State Highway Agency

About this bridge

N101-N23 Connector over Thousand Oaks Blvd is a concrete continuous box beam or girders - multiple carrying N101-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 23,801 vehicles a day, roughly 2% of them trucks, projected to reach 34,650 by 2042. The structure is 221 ft (67.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN101-N23 Connector
CrossesThousand Oaks Blvd
Location07-VEN-101-3.14-THOK
RouteU.S. Route 101
Coordinates34.17879, -118.85987
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating65 US tons
Inventory rating46.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length221 ft (67.4 m)
Longest span121 ft (36.9 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,801 (2019)
Projected traffic34,650 by 2042
Trucks2%
Lanes on structure2
Traffic directionOne-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 N101-N23 Connector over Thousand Oaks Blvd built?

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

What condition is N101-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 N101-N23 Connector over Thousand Oaks Blvd carry?

About 23,801 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is N101-N23 Connector over Thousand Oaks Blvd?

The structure is 221 ft (67.4 m) long with a longest span of 121 ft (36.9 m) and a deck 41 ft wide.

Who owns N101-N23 Connector over Thousand Oaks Blvd?

It is owned by the State Highway Agency.