US Bridges

Cochran Street over Las Llajas Creek

Good

Ventura County, California · 0.4 MI E Tapo ST · Structure no. 52C0115

Built
1980
45 years old
Condition
Good
inspected October 2022
Type
Slab
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
14,000
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cochran Street over Las Llajas Creek is a prestressed concrete slab carrying Cochran Street over Las Llajas Creek in Ventura County, California. It was built in 1980, so it is 45 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 14,000 vehicles a day, roughly 1% of them trucks, projected to reach 21,929 by 2040. The structure is 42 ft (12.8 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCochran Street
CrossesLas Llajas Creek
Location0.4 MI E Tapo ST
RouteCity Street 0
Coordinates34.27892, -118.70238
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width59 ft (18 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2017)
Projected traffic21,929 by 2040
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Cochran Street over Las Llajas Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Cochran Street over Las Llajas 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 2022.

How much traffic does Cochran Street over Las Llajas Creek carry?

About 14,000 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Cochran Street over Las Llajas Creek?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 59 ft wide.

Who owns Cochran Street over Las Llajas Creek?

It is owned by the City or Municipal Highway Agency.