US Bridges

Yosemite Avenue over Arroyo Simi

Fair

Ventura County, California · 0.3 M S/ O Los Angeles Av · Structure no. 52C0299

Built
2010
15 years old
Condition
Fair
inspected March 2022
Type
Culvert
Concrete
Length
42 ft
2 main spans
Daily traffic
3,200
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Yosemite Avenue over Arroyo Simi is a concrete culvert carrying Yosemite Avenue over Arroyo Simi in Ventura County, California. It was built in 2010, so it is 15 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,200 vehicles a day, roughly 1% of them trucks, projected to reach 4,173 by 2040. The structure is 42 ft (12.8 m) long and 81 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesYosemite Avenue
CrossesArroyo Simi
Location0.3 M S/ O Los Angeles Av
RouteCity Street 0
CountyVentura County
StateCalifornia
Coordinates34.26733, -118.67825
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span20 ft (6.1 m)
Deck width81 ft (24.7 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2019)
Projected traffic4,173 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 Yosemite Avenue over Arroyo Simi built?

It was built in 2010, making it 15 years old in 2025.

What condition is Yosemite Avenue over Arroyo Simi in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2022.

How much traffic does Yosemite Avenue over Arroyo Simi carry?

About 3,200 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Yosemite Avenue over Arroyo Simi?

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m) and a deck 81 ft wide.

Who owns Yosemite Avenue over Arroyo Simi?

It is owned by the City or Municipal Highway Agency.