US Bridges

I 710 over BNSF RY AMTRAK Metrolink

Good

Los Angeles County, California · 07-LA-710-22.17-VER · Structure no. 53 0840

Built
1954
71 years old, rebuilt 1967
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
1,102 ft
12 main spans
Daily traffic
217,000
2017 count
Owner
State
State Highway Agency

About this bridge

I 710 over BNSF RY AMTRAK Metrolink is a steel stringer/multi-beam or girder carrying I 710 over BNSF RY AMTRAK Metrolink in Los Angeles County, California. It was built in 1954 and reconstructed in 1967, so it is 71 years old, older 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 217,000 vehicles a day, roughly 9% of them trucks, projected to reach 225,835 by 2041. The structure is 1,102 ft (335.9 m) long and 173 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 710
CrossesBNSF RY AMTRAK Metrolink
Location07-LA-710-22.17-VER
RouteInterstate 710
Coordinates34.00076, -118.17453
Functional classUrban Principal Arterial - Interstate

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 inspectionJuly 2024
Inspection intervalevery 24 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length1,102 ft (335.9 m)
Longest span117 ft (35.7 m)
Deck width173 ft (52.8 m)
Roadway width115 ft (35.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic217,000 (2017)
Projected traffic225,835 by 2041
Trucks9%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
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 I 710 over BNSF RY AMTRAK Metrolink built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1967.

What condition is I 710 over BNSF RY AMTRAK Metrolink 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 July 2024.

How much traffic does I 710 over BNSF RY AMTRAK Metrolink carry?

About 217,000 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is I 710 over BNSF RY AMTRAK Metrolink?

The structure is 1,102 ft (335.9 m) long with a longest span of 117 ft (35.7 m) and a deck 173 ft wide.

Who owns I 710 over BNSF RY AMTRAK Metrolink?

It is owned by the State Highway Agency.