US Bridges

US Highway 395 SB over Los Angeles Aqueduct

Good

Inyo County, California · 09-INY-395-65.64 · Structure no. 48 0014L

Built
1948
77 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
108 ft
3 main spans
Daily traffic
3,200
2019 count
Owner
State
State Highway Agency

About this bridge

US Highway 395 SB over Los Angeles Aqueduct is a steel continuous stringer/multi-beam or girder carrying US Highway 395 SB over Los Angeles Aqueduct in Inyo County, California. It was built in 1948, so it is 77 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 3,200 vehicles a day, roughly 17% of them trucks, projected to reach 4,140 by 2041. The structure is 108 ft (32.9 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS Highway 395 SB
CrossesLos Angeles Aqueduct
Location09-INY-395-65.64
RouteU.S. Route 395
Coordinates36.70564, -118.128
Functional classRural Principal Arterial - Other

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 inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span84 ft (25.6 m)
Deck width45 ft (13.6 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2019)
Projected traffic4,140 by 2041
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US Highway 395 SB over Los Angeles Aqueduct built?

It was built in 1948, making it 77 years old in 2025.

What condition is US Highway 395 SB over Los Angeles 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 September 2024.

How much traffic does US Highway 395 SB over Los Angeles Aqueduct carry?

About 3,200 vehicles per day (2019 count), of which roughly 17% are trucks.

How long is US Highway 395 SB over Los Angeles Aqueduct?

The structure is 108 ft (32.9 m) long with a longest span of 84 ft (25.6 m) and a deck 45 ft wide.

Who owns US Highway 395 SB over Los Angeles Aqueduct?

It is owned by the State Highway Agency.