US Bridges

Via Alondra over Somis Drain

Good

Ventura County, California · 0.1 MI Sw/O Maya Linda ST · Structure no. 52C0305

Built
1982
43 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
150
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Via Alondra over Somis Drain is a concrete culvert carrying Via Alondra over Somis Drain in Ventura County, California. It was built in 1982, so it is 43 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 150 vehicles a day, roughly 1% of them trucks, projected to reach 170 by 2040. The structure is 23 ft (6.9 m) long and 69 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesVia Alondra
CrossesSomis Drain
Location0.1 MI Sw/O Maya Linda ST
RouteCity Street 0
Coordinates34.22411, -119.02494
Functional classUrban Local

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 protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span21 ft (6.3 m)
Deck width69 ft (21 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic170 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 Via Alondra over Somis Drain built?

It was built in 1982, making it 43 years old in 2025.

What condition is Via Alondra over Somis Drain 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 Via Alondra over Somis Drain carry?

About 150 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Via Alondra over Somis Drain?

The structure is 23 ft (6.9 m) long with a longest span of 21 ft (6.3 m) and a deck 69 ft wide.

Who owns Via Alondra over Somis Drain?

It is owned by the City or Municipal Highway Agency.