US Bridges

Interstate 5 SB over Grapevine Road

Fair

Kern County, California · 06-KER-005-8.47L · Structure no. 50 0222L

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
168 ft
4 main spans
Daily traffic
24,375
2009 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 SB over Grapevine Road is a concrete continuous slab carrying Interstate 5 SB over Grapevine Road in Kern County, California. It was built in 1960, so it is 65 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 5 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 24,375 vehicles a day, roughly 33% of them trucks, projected to reach 70,531 by 2043. The structure is 168 ft (51.2 m) long and 69 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesInterstate 5 SB
CrossesGrapevine Road
Location06-KER-005-8.47L
RouteInterstate 5
CountyKern County
StateCalifornia
Coordinates34.91547, -118.92462
Functional classRural Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span44 ft (13.4 m)
Deck width69 ft (21.1 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,375 (2009)
Projected traffic70,531 by 2043
Trucks33%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 5 SB over Grapevine Road built?

It was built in 1960, making it 65 years old in 2025.

What condition is Interstate 5 SB over Grapevine Road 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 May 2023.

How much traffic does Interstate 5 SB over Grapevine Road carry?

About 24,375 vehicles per day (2009 count), of which roughly 33% are trucks.

How long is Interstate 5 SB over Grapevine Road?

The structure is 168 ft (51.2 m) long with a longest span of 44 ft (13.4 m) and a deck 69 ft wide.

Who owns Interstate 5 SB over Grapevine Road?

It is owned by the State Highway Agency.