US Bridges

Grimes Canyon Road over Grimes Canyon Wash

Good

Ventura County, California · 2.4 MI N/ State Route 118 · Structure no. 52C0282

Built
2008
17 years old
Condition
Good
inspected April 2022
Type
Stringer/Multi-beam or Girder
Concrete
Length
60 ft
1 main span
Daily traffic
3,200
2019 count
Owner
County
County Highway Agency

About this bridge

Grimes Canyon Road over Grimes Canyon Wash is a concrete stringer/multi-beam or girder carrying Grimes Canyon Road over Grimes Canyon Wash in Ventura County, California. It was built in 2008, so it is 17 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 3,200 vehicles a day, roughly 3% of them trucks, projected to reach 3,934 by 2040. The structure is 60 ft (18.3 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesGrimes Canyon Road
CrossesGrimes Canyon Wash
Location2.4 MI N/ State Route 118
RouteCounty Highway 0
Coordinates34.29934, -118.91458
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span57 ft (17.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2019)
Projected traffic3,934 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Grimes Canyon Road over Grimes Canyon Wash built?

It was built in 2008, making it 17 years old in 2025.

What condition is Grimes Canyon Road over Grimes Canyon Wash 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 April 2022.

How much traffic does Grimes Canyon Road over Grimes Canyon Wash carry?

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

How long is Grimes Canyon Road over Grimes Canyon Wash?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.5 m) and a deck 43 ft wide.

Who owns Grimes Canyon Road over Grimes Canyon Wash?

It is owned by the County Highway Agency.