US Bridges

Interstate 605 over Washington Blvd

Good

Los Angeles County, California · 07-LA-605-R12.05-SFSP · Structure no. 53 1667

Built
1965
60 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
2 main spans
Daily traffic
264,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 605 over Washington Blvd is a prestressed concrete stringer/multi-beam or girder carrying Interstate 605 over Washington Blvd in Los Angeles County, California. It was built in 1965, 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 264,000 vehicles a day, roughly 11% of them trucks, projected to reach 268,410 by 2042. The structure is 160 ft (48.8 m) long and 226 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 605
CrossesWashington Blvd
Location07-LA-605-R12.05-SFSP
RouteInterstate 605
Coordinates33.9737, -118.07975
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating23.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length160 ft (48.8 m)
Longest span52 ft (15.9 m)
Deck width226 ft (69 m)
Roadway width220 ft (67 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic264,000 (2021)
Projected traffic268,410 by 2042
Trucks11%
Lanes on structure14
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 605 over Washington Blvd built?

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

What condition is Interstate 605 over Washington Blvd 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 September 2023.

How much traffic does Interstate 605 over Washington Blvd carry?

About 264,000 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is Interstate 605 over Washington Blvd?

The structure is 160 ft (48.8 m) long with a longest span of 52 ft (15.9 m) and a deck 226 ft wide.

Who owns Interstate 605 over Washington Blvd?

It is owned by the State Highway Agency.