US Bridges

U.S. Highway 101 over Bates Road

Good

Ventura County, California · 07-VEN-101-R43.57 · Structure no. 52 0279

Built
1971
54 years old, rebuilt 2015
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
139 ft
1 main span
Daily traffic
76,000
2019 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Bates Road is a prestressed concrete box beam or girders - multiple carrying U.S. Highway 101 over Bates Road in Ventura County, California. It was built in 1971 and reconstructed in 2015, so it is 54 years old, younger 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 76,000 vehicles a day, roughly 10% of them trucks, projected to reach 87,168 by 2041. The structure is 139 ft (42.5 m) long and 164 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesU.S. Highway 101
CrossesBates Road
Location07-VEN-101-R43.57
RouteU.S. Route 101
Coordinates34.37619, -119.47731
Functional classUrban Other Principal Arterial

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 inspectionDecember 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 rating79.3 US tons
Inventory rating58.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length139 ft (42.5 m)
Longest span138 ft (42.2 m)
Deck width164 ft (50 m)
Roadway width156 ft (47.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,000 (2019)
Projected traffic87,168 by 2041
Trucks10%
Lanes on structure6
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 Bates Road built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2015.

What condition is U.S. Highway 101 over Bates Road 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 December 2024.

How much traffic does U.S. Highway 101 over Bates Road carry?

About 76,000 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is U.S. Highway 101 over Bates Road?

The structure is 139 ft (42.5 m) long with a longest span of 138 ft (42.2 m) and a deck 164 ft wide.

Who owns U.S. Highway 101 over Bates Road?

It is owned by the State Highway Agency.