US Bridges

U.S. Highway 101 over N101-N1 Connector Ramp

Good

Ventura County, California · 07-VEN-101-R32.70 · Structure no. 52 0206

Built
1963
62 years old, rebuilt 1973
Condition
Good
inspected August 2024
Type
Frame
Concrete
Length
72 ft
1 main span
Daily traffic
81,000
2018 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over N101-N1 Connector Ramp is a concrete frame carrying U.S. Highway 101 over N101-N1 Connector Ramp in Ventura County, California. It was built in 1963 and reconstructed in 1973, so it is 62 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 81,000 vehicles a day, roughly 8% of them trucks, projected to reach 120,690 by 2046. The structure is 72 ft (21.9 m) long and 144 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesU.S. Highway 101
CrossesN101-N1 Connector Ramp
Location07-VEN-101-R32.70
RouteU.S. Route 101
Coordinates34.2899, -119.3337
Functional classRural Principal Arterial - Other

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 inspectionAugust 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 alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating74.3 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span72 ft (21.9 m)
Deck width144 ft (44 m)
Roadway width138 ft (42 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81,000 (2018)
Projected traffic120,690 by 2046
Trucks8%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 N101-N1 Connector Ramp built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1973.

What condition is U.S. Highway 101 over N101-N1 Connector Ramp 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 August 2024.

How much traffic does U.S. Highway 101 over N101-N1 Connector Ramp carry?

About 81,000 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is U.S. Highway 101 over N101-N1 Connector Ramp?

The structure is 72 ft (21.9 m) long with a longest span of 72 ft (21.9 m) and a deck 144 ft wide.

Who owns U.S. Highway 101 over N101-N1 Connector Ramp?

It is owned by the State Highway Agency.