US Bridges

Weiser Road over Interstate 5

Fair

Kern County, California · 06-KER-005-80.01 · Structure no. 50 0318

Built
1970
55 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
262 ft
2 main spans
Daily traffic
28
2008 count
Owner
State
State Highway Agency

About this bridge

Weiser Road over Interstate 5 is a prestressed concrete continuous box beam or girders - multiple carrying Weiser Road over Interstate 5 in Kern County, California. It was built in 1970, so it is 55 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 6 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 28 vehicles a day, roughly 40% of them trucks, projected to reach 55 by 2044. The structure is 262 ft (79.9 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesWeiser Road
CrossesInterstate 5
Location06-KER-005-80.01
RouteCounty Highway 0
Coordinates35.70289, -119.71815
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating36.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length262 ft (79.9 m)
Longest span131 ft (39.8 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2008)
Projected traffic55 by 2044
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

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 Weiser Road over Interstate 5 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Weiser Road over Interstate 5 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 October 2024.

How much traffic does Weiser Road over Interstate 5 carry?

About 28 vehicles per day (2008 count), of which roughly 40% are trucks.

How long is Weiser Road over Interstate 5?

The structure is 262 ft (79.9 m) long with a longest span of 131 ft (39.8 m) and a deck 34 ft wide.

Who owns Weiser Road over Interstate 5?

It is owned by the State Highway Agency.