US Bridges

Interstate 605 over I 5 & Connector Ramps

Good

Los Angeles County, California · 07-LA-605-R9.55-SFSP · Structure no. 53 1660

Built
1965
60 years old, rebuilt 1996
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
567 ft
2 main spans
Daily traffic
230,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 605 over I 5 & Connector Ramps is a prestressed concrete stringer/multi-beam or girder carrying Interstate 605 over I 5 & Connector Ramps in Los Angeles County, California. It was built in 1965 and reconstructed in 1996, so it is 60 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 230,000 vehicles a day, roughly 6% of them trucks, projected to reach 276,624 by 2043. The structure is 567 ft (172.9 m) long and 154 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 605
CrossesI 5 & Connector Ramps
Location07-LA-605-R9.55-SFSP
RouteInterstate 605
Coordinates33.94031, -118.09682
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 inspectionApril 2023
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 alignment9: Superior to present desirable criteria
Operating rating42.5 US tons
Inventory rating30.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+6 approach)
Design loadHS 20
Structure length567 ft (172.9 m)
Longest span97 ft (29.5 m)
Deck width154 ft (46.9 m)
Roadway width148 ft (45.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230,000 (2021)
Projected traffic276,624 by 2043
Trucks6%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 605 over I 5 & Connector Ramps built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1996.

What condition is Interstate 605 over I 5 & Connector Ramps 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 April 2023.

How much traffic does Interstate 605 over I 5 & Connector Ramps carry?

About 230,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Interstate 605 over I 5 & Connector Ramps?

The structure is 567 ft (172.9 m) long with a longest span of 97 ft (29.5 m) and a deck 154 ft wide.

Who owns Interstate 605 over I 5 & Connector Ramps?

It is owned by the State Highway Agency.