US Bridges

Interstate 10 over W10-S605 Ramp

Fair

Los Angeles County, California · 07-LA-010-31.11-BWP · Structure no. 53 0882

Built
1956
69 years old, rebuilt 2013
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
66 ft
1 main span
Daily traffic
233,000
2014 count
Owner
State
State Highway Agency

About this bridge

Interstate 10 over W10-S605 Ramp is a concrete box beam or girders - multiple carrying Interstate 10 over W10-S605 Ramp in Los Angeles County, California. It was built in 1956 and reconstructed in 2013, so it is 69 years old, older 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 233,000 vehicles a day, roughly 6% of them trucks, projected to reach 311,639 by 2043. The structure is 66 ft (20.1 m) long and 194 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesInterstate 10
CrossesW10-S605 Ramp
Location07-LA-010-31.11-BWP
RouteInterstate 10
CountyLos Angeles County
StateCalifornia
Coordinates34.06476, -118.00085
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating42.9 US tons
Inventory rating33.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span66 ft (20.1 m)
Deck width194 ft (59.1 m)
Roadway width189 ft (57.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic233,000 (2014)
Projected traffic311,639 by 2043
Trucks6%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 10 over W10-S605 Ramp built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2013.

What condition is Interstate 10 over W10-S605 Ramp 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 April 2023.

How much traffic does Interstate 10 over W10-S605 Ramp carry?

About 233,000 vehicles per day (2014 count), of which roughly 6% are trucks.

How long is Interstate 10 over W10-S605 Ramp?

The structure is 66 ft (20.1 m) long with a longest span of 66 ft (20.1 m) and a deck 194 ft wide.

Who owns Interstate 10 over W10-S605 Ramp?

It is owned by the State Highway Agency.