US Bridges

HWY 101 & Ramps over Camarillo Hills Drain

Good

Ventura County, California · 07-VEN-101-15.69-CMRL · Structure no. 52 0370

Built
1975
50 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
144,000
2018 count
Owner
State
State Highway Agency

About this bridge

HWY 101 & Ramps over Camarillo Hills Drain is a concrete culvert carrying HWY 101 & Ramps over Camarillo Hills Drain in Ventura County, California. It was built in 1975, so it is 50 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 144,000 vehicles a day, roughly 8% of them trucks, projected to reach 214,560 by 2044. The structure is 28 ft (8.5 m) long and 105 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY 101 & Ramps
CrossesCamarillo Hills Drain
Location07-VEN-101-15.69-CMRL
RouteU.S. Route 101
Coordinates34.219, -119.06641
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJuly 2024
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width105 ft (32 m)
Roadway width105 ft (32 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic144,000 (2018)
Projected traffic214,560 by 2044
Trucks8%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 HWY 101 & Ramps over Camarillo Hills Drain built?

It was built in 1975, making it 50 years old in 2025.

What condition is HWY 101 & Ramps over Camarillo Hills 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 HWY 101 & Ramps over Camarillo Hills Drain carry?

About 144,000 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is HWY 101 & Ramps over Camarillo Hills Drain?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 105 ft wide.

Who owns HWY 101 & Ramps over Camarillo Hills Drain?

It is owned by the State Highway Agency.