US Bridges

Grapevine Road over Grapevine Creek

Good

Kern County, California · 6.7 MI S of Fort Tejon SP · Structure no. 50C0226

Built
1950
75 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Concrete
Length
22 ft
1 main span
Daily traffic
100
2007 count
Owner
County
County Highway Agency

About this bridge

Grapevine Road over Grapevine Creek is a concrete tee beam carrying Grapevine Road over Grapevine Creek in Kern County, California. It was built in 1950, so it is 75 years old, older 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 217 by 2041. The structure is 22 ft (6.7 m) long and 23 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesGrapevine Road
CrossesGrapevine Creek
Location6.7 MI S of Fort Tejon SP
RouteCounty Highway 0
CountyKern County
StateCalifornia
Coordinates34.9293, -118.92708
Functional classRural Local

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 inspectionNovember 2023
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width23 ft (7.1 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2007)
Projected traffic217 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Grapevine Road over Grapevine Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Grapevine Road over Grapevine Creek 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 November 2023.

How much traffic does Grapevine Road over Grapevine Creek carry?

About 100 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is Grapevine Road over Grapevine Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 23 ft wide.

Who owns Grapevine Road over Grapevine Creek?

It is owned by the County Highway Agency.