US Bridges

Interstate 10 over Stewart Street

Fair

Los Angeles County, California · 07-LA-010-R3.71-SMCA · Structure no. 53 1600

Built
1965
60 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
137 ft
3 main spans
Daily traffic
185,000
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 10 over Stewart Street is a concrete continuous tee beam carrying Interstate 10 over Stewart Street in Los Angeles County, California. It was built in 1965, so it is 60 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 185,000 vehicles a day, projected to reach 202,347 by 2042. The structure is 137 ft (41.8 m) long and 141 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 10
CrossesStewart Street
Location07-LA-010-R3.71-SMCA
RouteInterstate 10
Coordinates34.02604, -118.46291
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
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.
Last inspectionFebruary 2024
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 rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span69 ft (21 m)
Deck width141 ft (42.9 m)
Roadway width136 ft (41.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185,000 (2022)
Projected traffic202,347 by 2042
Trucks0%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 10 over Stewart Street built?

It was built in 1965, making it 60 years old in 2025.

What condition is Interstate 10 over Stewart Street 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 February 2024.

How much traffic does Interstate 10 over Stewart Street carry?

About 185,000 vehicles per day (2022 count).

How long is Interstate 10 over Stewart Street?

The structure is 137 ft (41.8 m) long with a longest span of 69 ft (21 m) and a deck 141 ft wide.

Who owns Interstate 10 over Stewart Street?

It is owned by the State Highway Agency.