US Bridges

State Route 57 over Metrolink & UP RR

Fair

Los Angeles County, California · 07-LA-057-R10.40-SDMS · Structure no. 53 1949

Built
1971
54 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
149,000
2022 count
Owner
State
State Highway Agency

About this bridge

State Route 57 over Metrolink & UP RR is a concrete continuous tee beam carrying State Route 57 over Metrolink & UP RR in Los Angeles County, California. It was built in 1971, so it is 54 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 149,000 vehicles a day, roughly 5% of them trucks, projected to reach 146,359 by 2045. The structure is 122 ft (37.2 m) long and 158 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 57
CrossesMetrolink & UP RR
Location07-LA-057-R10.40-SDMS
RouteState Highway 57
Coordinates34.10108, -117.81917
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span42 ft (12.8 m)
Deck width158 ft (48.2 m)
Roadway width154 ft (46.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic149,000 (2022)
Projected traffic146,359 by 2045
Trucks5%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 Metrolink & UP RR built?

It was built in 1971, making it 54 years old in 2025.

What condition is State Route 57 over Metrolink & UP RR 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 2024.

How much traffic does State Route 57 over Metrolink & UP RR carry?

About 149,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is State Route 57 over Metrolink & UP RR?

The structure is 122 ft (37.2 m) long with a longest span of 42 ft (12.8 m) and a deck 158 ft wide.

Who owns State Route 57 over Metrolink & UP RR?

It is owned by the State Highway Agency.