US Bridges

Interstate 5 NB over Metrolink UP RR AMTRAK

Fair

Los Angeles County, California · 07-LA-005-28.70-BRB · Structure no. 53 1085R

Built
1959
66 years old, rebuilt 2020
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
740 ft
8 main spans
Daily traffic
119,510
2018 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 NB over Metrolink UP RR AMTRAK is a steel stringer/multi-beam or girder carrying Interstate 5 NB over Metrolink UP RR AMTRAK in Los Angeles County, California. It was built in 1959 and reconstructed in 2020, so it is 66 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 119,510 vehicles a day, roughly 8% of them trucks, projected to reach 119,620 by 2041. The structure is 740 ft (225.6 m) long and 98 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 5 NB
CrossesMetrolink UP RR AMTRAK
Location07-LA-005-28.70-BRB
RouteInterstate 5
CountyLos Angeles County
StateCalifornia
Coordinates34.1734, -118.30621
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 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 rating47.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length740 ft (225.6 m)
Longest span110 ft (33.4 m)
Deck width98 ft (30 m)
Roadway width95 ft (29.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119,510 (2018)
Projected traffic119,620 by 2041
Trucks8%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 5 NB over Metrolink UP RR AMTRAK built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2020.

What condition is Interstate 5 NB over Metrolink UP RR AMTRAK 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 December 2024.

How much traffic does Interstate 5 NB over Metrolink UP RR AMTRAK carry?

About 119,510 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Interstate 5 NB over Metrolink UP RR AMTRAK?

The structure is 740 ft (225.6 m) long with a longest span of 110 ft (33.4 m) and a deck 98 ft wide.

Who owns Interstate 5 NB over Metrolink UP RR AMTRAK?

It is owned by the State Highway Agency.