US Bridges

Three Points RD over California Aqueduct

Fair

Los Angeles County, California · 1.0MI N/O Lancaster RD · Structure no. 53C1693

Built
1976
49 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
306
2017 count
Owner
County
County Highway Agency

About this bridge

Three Points RD over California Aqueduct is a prestressed concrete stringer/multi-beam or girder carrying Three Points RD over California Aqueduct in Los Angeles County, California. It was built in 1976, so it is 49 years old, younger 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 306 vehicles a day, roughly 1% of them trucks, projected to reach 306 by 2043. The structure is 89 ft (27.1 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesThree Points RD
CrossesCalifornia Aqueduct
Location1.0MI N/O Lancaster RD
RouteCounty Highway 0
CountyLos Angeles County
StateCalifornia
Coordinates34.78792, -118.58991
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating31.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length89 ft (27.1 m)
Longest span87 ft (26.5 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic306 (2017)
Projected traffic306 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Three Points RD over California Aqueduct built?

It was built in 1976, making it 49 years old in 2025.

What condition is Three Points RD over California Aqueduct 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 March 2024.

How much traffic does Three Points RD over California Aqueduct carry?

About 306 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Three Points RD over California Aqueduct?

The structure is 89 ft (27.1 m) long with a longest span of 87 ft (26.5 m) and a deck 40 ft wide.

Who owns Three Points RD over California Aqueduct?

It is owned by the County Highway Agency.