US Bridges

Sycamore Drive over Arroyo Simi

Fair

Ventura County, California · 0.6 MI S Los Angeles Ave · Structure no. 52C0123

Built
1966
59 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
16,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sycamore Drive over Arroyo Simi is a concrete continuous tee beam carrying Sycamore Drive over Arroyo Simi in Ventura County, California. It was built in 1966, so it is 59 years old, older 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 16,000 vehicles a day, roughly 1% of them trucks, projected to reach 15,767 by 2044. The structure is 153 ft (46.6 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSycamore Drive
CrossesArroyo Simi
Location0.6 MI S Los Angeles Ave
RouteCity Street 0
CountyVentura County
StateCalifornia
Coordinates34.26532, -118.74775
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating28.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span50 ft (15.2 m)
Deck width73 ft (22.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2022)
Projected traffic15,767 by 2044
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 Sycamore Drive over Arroyo Simi built?

It was built in 1966, making it 59 years old in 2025.

What condition is Sycamore Drive 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 October 2024.

How much traffic does Sycamore Drive over Arroyo Simi carry?

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

How long is Sycamore Drive over Arroyo Simi?

The structure is 153 ft (46.6 m) long with a longest span of 50 ft (15.2 m) and a deck 73 ft wide.

Who owns Sycamore Drive over Arroyo Simi?

It is owned by the City or Municipal Highway Agency.