US Bridges

State Route 150 over Hillside

Good

Ventura County, California · 07-VEN-150-28.92 · Structure no. 52 0404

Built
1979
46 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
126 ft
2 main spans
Daily traffic
3,250
2021 count
Owner
State
State Highway Agency

About this bridge

State Route 150 over Hillside is a prestressed concrete continuous stringer/multi-beam or girder carrying State Route 150 over Hillside in Ventura County, California. It was built in 1979, so it is 46 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 3,250 vehicles a day, roughly 6% of them trucks, projected to reach 4,682 by 2041. The structure is 126 ft (38.3 m) long and 10 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

CarriesState Route 150
CrossesHillside
Location07-VEN-150-28.92
RouteState Highway 150
Coordinates34.42346, -119.08601
Functional classRural Minor 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 inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length126 ft (38.3 m)
Longest span61 ft (18.5 m)
Deck width10 ft (3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,250 (2021)
Projected traffic4,682 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed42.3 mi (68 km)
TollOn a free road
National Highway SystemNo

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 State Route 150 over Hillside built?

It was built in 1979, making it 46 years old in 2025.

What condition is State Route 150 over Hillside 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 October 2023.

How much traffic does State Route 150 over Hillside carry?

About 3,250 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is State Route 150 over Hillside?

The structure is 126 ft (38.3 m) long with a longest span of 61 ft (18.5 m) and a deck 10 ft wide.

Who owns State Route 150 over Hillside?

It is owned by the State Highway Agency.