US Bridges

State Route 57 over Interstate 10 & E10-S71

Good

Los Angeles County, California · 07-LA-057-R7.66-POM · Structure no. 53 2003

Built
1972
53 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
651 ft
6 main spans
Daily traffic
158,000
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 57 over Interstate 10 & E10-S71 is a concrete continuous box beam or girders - multiple carrying State Route 57 over Interstate 10 & E10-S71 in Los Angeles County, California. It was built in 1972, so it is 53 years old, younger 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 158,000 vehicles a day, roughly 5% of them trucks, projected to reach 146,359 by 2042. The structure is 651 ft (198.4 m) long and 124 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesState Route 57
CrossesInterstate 10 & E10-S71
Location07-LA-057-R7.66-POM
RouteState Highway 57
Coordinates34.06446, -117.8061
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionAugust 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 rating36.4 US tons
Inventory rating24.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length651 ft (198.4 m)
Longest span126 ft (38.4 m)
Deck width124 ft (37.8 m)
Roadway width120 ft (36.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic158,000 (2015)
Projected traffic146,359 by 2042
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 State Route 57 over Interstate 10 & E10-S71 built?

It was built in 1972, making it 53 years old in 2025.

What condition is State Route 57 over Interstate 10 & E10-S71 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 August 2024.

How much traffic does State Route 57 over Interstate 10 & E10-S71 carry?

About 158,000 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is State Route 57 over Interstate 10 & E10-S71?

The structure is 651 ft (198.4 m) long with a longest span of 126 ft (38.4 m) and a deck 124 ft wide.

Who owns State Route 57 over Interstate 10 & E10-S71?

It is owned by the State Highway Agency.