US Bridges

Interstate 5 over Conn Busway Metrolink

Fair

Los Angeles County, California · 07-LA-005-18.52-LA · Structure no. 53 1333

Built
1959
66 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
345 ft
4 main spans
Daily traffic
237,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over Conn Busway Metrolink is a concrete continuous box beam or girders - multiple carrying Interstate 5 over Conn Busway Metrolink in Los Angeles County, California. It was built in 1959, 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 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 237,000 vehicles a day, roughly 6% of them trucks, projected to reach 257,000 by 2041. The structure is 345 ft (105.2 m) long and 117 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 5
CrossesConn Busway Metrolink
Location07-LA-005-18.52-LA
RouteInterstate 5
Coordinates34.05617, -118.21404
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
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating42.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length345 ft (105.2 m)
Longest span120 ft (36.6 m)
Deck width117 ft (35.8 m)
Roadway width110 ft (33.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic237,000 (2021)
Projected traffic257,000 by 2041
Trucks6%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 over Conn Busway Metrolink built?

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

What condition is Interstate 5 over Conn Busway 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 March 2023.

How much traffic does Interstate 5 over Conn Busway Metrolink carry?

About 237,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Interstate 5 over Conn Busway Metrolink?

The structure is 345 ft (105.2 m) long with a longest span of 120 ft (36.6 m) and a deck 117 ft wide.

Who owns Interstate 5 over Conn Busway Metrolink?

It is owned by the State Highway Agency.