US Bridges

State Route 150 over Sisar Creek

Good

Ventura County, California · 07-VEN-150-28.48 · Structure no. 52 0103

Built
1958
67 years old, rebuilt 2009
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
63 ft
1 main span
Daily traffic
3,150
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 150 over Sisar Creek is a concrete box beam or girders - multiple carrying State Route 150 over Sisar Creek in Ventura County, California. It was built in 1958 and reconstructed in 2009, so it is 67 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 3,150 vehicles a day, roughly 6% of them trucks, projected to reach 3,600 by 2041. The structure is 63 ft (19.3 m) long and 43 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

Open in Google Maps
CarriesState Route 150
CrossesSisar Creek
Location07-VEN-150-28.48
RouteState Highway 150
CountyVentura County
StateCalifornia
Coordinates34.42748, -119.09189
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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating21.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.3 m)
Longest span59 ft (18.1 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,150 (2020)
Projected traffic3,600 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 150 over Sisar Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2009.

What condition is State Route 150 over Sisar Creek 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 Sisar Creek carry?

About 3,150 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is State Route 150 over Sisar Creek?

The structure is 63 ft (19.3 m) long with a longest span of 59 ft (18.1 m) and a deck 43 ft wide.

Who owns State Route 150 over Sisar Creek?

It is owned by the State Highway Agency.