US Bridges

State Route 71 over UP RR AMTRAK Metrolink

Fair

Los Angeles County, California · 07-LA-071-1.31-POM · Structure no. 53 0345

Built
1926
99 years old, rebuilt 1939
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
133 ft
5 main spans
Daily traffic
91,000
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 71 over UP RR AMTRAK Metrolink is a concrete continuous tee beam carrying State Route 71 over UP RR AMTRAK Metrolink in Los Angeles County, California. It was built in 1926 and reconstructed in 1939, so it is 99 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 6 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 91,000 vehicles a day, projected to reach 157,883 by 2045. The structure is 133 ft (40.5 m) long and 82 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesState Route 71
CrossesUP RR AMTRAK Metrolink
Location07-LA-071-1.31-POM
RouteState Highway 71
CountyLos Angeles County
StateCalifornia
Coordinates34.05699, -117.78482
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length133 ft (40.5 m)
Longest span38 ft (11.6 m)
Deck width82 ft (25 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91,000 (2017)
Projected traffic157,883 by 2045
Trucks0%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 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 71 over UP RR AMTRAK Metrolink built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1939.

What condition is State Route 71 over UP RR AMTRAK Metrolink 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 October 2024.

How much traffic does State Route 71 over UP RR AMTRAK Metrolink carry?

About 91,000 vehicles per day (2017 count).

How long is State Route 71 over UP RR AMTRAK Metrolink?

The structure is 133 ft (40.5 m) long with a longest span of 38 ft (11.6 m) and a deck 82 ft wide.

Who owns State Route 71 over UP RR AMTRAK Metrolink?

It is owned by the State Highway Agency.