US Bridges

25th Ave over California Aqueduct

Good

Kings County, California · 2.0 MI S of I-5 · Structure no. 45C0128

Built
1965
60 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
226 ft
3 main spans
Daily traffic
650
2018 count
Owner
State
Other State Agency

About this bridge

25th Ave over California Aqueduct is a concrete continuous tee beam carrying 25th Ave over California Aqueduct in Kings County, California. It was built in 1965, so it is 60 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 650 vehicles a day, roughly 20% of them trucks, projected to reach 418 by 2042. The structure is 226 ft (68.9 m) long and 32 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
Carries25th Ave
CrossesCalifornia Aqueduct
Location2.0 MI S of I-5
RouteCounty Highway 0
CountyKings County
StateCalifornia
Coordinates35.90589, -119.91493
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length226 ft (68.9 m)
Longest span86 ft (26.2 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2018)
Projected traffic418 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State 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 25th Ave over California Aqueduct built?

It was built in 1965, making it 60 years old in 2025.

What condition is 25th Ave over California Aqueduct 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 October 2024.

How much traffic does 25th Ave over California Aqueduct carry?

About 650 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is 25th Ave over California Aqueduct?

The structure is 226 ft (68.9 m) long with a longest span of 86 ft (26.2 m) and a deck 32 ft wide.

Who owns 25th Ave over California Aqueduct?

It is owned by the Other State Agency and maintained by the County Highway Agency.