US Bridges

Alamo Street over Las Llajas Creek

Good

Ventura County, California · 0.4 MI W Stearns ST · Structure no. 52C0119

Built
1935
90 years old, rebuilt 1968
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
16,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Alamo Street over Las Llajas Creek is a concrete culvert carrying Alamo Street over Las Llajas Creek in Ventura County, California. It was built in 1935 and reconstructed in 1968, so it is 90 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 16,000 vehicles a day, roughly 1% of them trucks, projected to reach 15,663 by 2044. The structure is 30 ft (9.1 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAlamo Street
CrossesLas Llajas Creek
Location0.4 MI W Stearns ST
RouteCity Street 0
Coordinates34.28614, -118.69731
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span10 ft (3 m)
Deck width84 ft (25.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2022)
Projected traffic15,663 by 2044
Trucks1%
Lanes on structure5
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 Alamo Street over Las Llajas Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1968.

What condition is Alamo 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 2024.

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

About 16,000 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Alamo Street over Las Llajas Creek?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m) and a deck 84 ft wide.

Who owns Alamo Street over Las Llajas Creek?

It is owned by the City or Municipal Highway Agency.