US Bridges

Moffat Ranch RD over Los Angeles Aqueduct

Fair

Inyo County, California · 0.3 KM W. of RTE 395 · Structure no. 48C0046

Built
1996
29 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
78 ft
2 main spans
Daily traffic
150
2019 count
Owner
County
County Highway Agency

About this bridge

Moffat Ranch RD over Los Angeles Aqueduct is a concrete continuous tee beam carrying Moffat Ranch RD over Los Angeles Aqueduct in Inyo County, California. It was built in 1996, so it is 29 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 150 vehicles a day, roughly 1% of them trucks, projected to reach 207 by 2040. The structure is 78 ft (23.9 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMoffat Ranch RD
CrossesLos Angeles Aqueduct
Location0.3 KM W. of RTE 395
RouteCounty Highway 0
Coordinates36.68397, -118.11022
Functional classRural Minor 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
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length78 ft (23.9 m)
Longest span38 ft (11.5 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2019)
Projected traffic207 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 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 Moffat Ranch RD over Los Angeles Aqueduct built?

It was built in 1996, making it 29 years old in 2025.

What condition is Moffat Ranch RD over Los Angeles 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 September 2023.

How much traffic does Moffat Ranch RD over Los Angeles Aqueduct carry?

About 150 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Moffat Ranch RD over Los Angeles Aqueduct?

The structure is 78 ft (23.9 m) long with a longest span of 38 ft (11.5 m) and a deck 28 ft wide.

Who owns Moffat Ranch RD over Los Angeles Aqueduct?

It is owned by the County Highway Agency.