US Bridges

Lost Canyon Drive over Tapo Canyon Drain

Good

Ventura County, California · 0.1 MI W/O Tapo Canyon RD · Structure no. 52C0290

Built
2001
24 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
43 ft
2 main spans
Daily traffic
2,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lost Canyon Drive over Tapo Canyon Drain is a concrete culvert carrying Lost Canyon Drive over Tapo Canyon Drain in Ventura County, California. It was built in 2001, so it is 24 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 2,000 vehicles a day, roughly 1% of them trucks, projected to reach 6,675 by 2042. The structure is 43 ft (13 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLost Canyon Drive
CrossesTapo Canyon Drain
Location0.1 MI W/O Tapo Canyon RD
RouteCity Street 0
Coordinates34.30614, -118.72171
Functional classUrban Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length43 ft (13 m)
Longest span20 ft (6.2 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic6,675 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Lost Canyon Drive over Tapo Canyon Drain built?

It was built in 2001, making it 24 years old in 2025.

What condition is Lost Canyon Drive over Tapo Canyon 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 July 2024.

How much traffic does Lost Canyon Drive over Tapo Canyon Drain carry?

About 2,000 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Lost Canyon Drive over Tapo Canyon Drain?

The structure is 43 ft (13 m) long with a longest span of 20 ft (6.2 m) and a deck 26 ft wide.

Who owns Lost Canyon Drive over Tapo Canyon Drain?

It is owned by the City or Municipal Highway Agency.