US Bridges

Ave H over California Aqueduct

Good

Los Angeles County, California · 1.0MI S/O Lancaster RD · Structure no. 53C1497

Built
1967
58 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
124 ft
2 main spans
Daily traffic
101
2014 count
Owner
County
County Highway Agency

About this bridge

Ave H over California Aqueduct is a concrete continuous tee beam carrying Ave H over California Aqueduct in Los Angeles County, California. It was built in 1967, so it is 58 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 101 vehicles a day, projected to reach 101 by 2044. The structure is 124 ft (37.8 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesAve H
CrossesCalifornia Aqueduct
Location1.0MI S/O Lancaster RD
RouteCounty Highway 0WP12
Coordinates34.71698, -118.42278
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 protection9 ExcellentNo problems noted.
Last inspectionMay 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 alignment7: Better than present minimum criteria
Operating rating83.6 US tons
Inventory rating49.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span61 ft (18.6 m)
Deck width39 ft (11.9 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2014)
Projected traffic101 by 2044
Trucks0%
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 Ave H over California Aqueduct built?

It was built in 1967, making it 58 years old in 2025.

What condition is Ave H 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 May 2024.

How much traffic does Ave H over California Aqueduct carry?

About 101 vehicles per day (2014 count).

How long is Ave H over California Aqueduct?

The structure is 124 ft (37.8 m) long with a longest span of 61 ft (18.6 m) and a deck 39 ft wide.

Who owns Ave H over California Aqueduct?

It is owned by the County Highway Agency.