US Bridges

Interstate 605 over Rivergrade Oh Valley

Good

Los Angeles County, California · 07-LA-605-R19.39-IDY · Structure no. 53 1537

Built
1964
61 years old, rebuilt 1995
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
563 ft
13 main spans
Daily traffic
220,000
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 605 over Rivergrade Oh Valley is a concrete continuous box beam or girders - multiple carrying Interstate 605 over Rivergrade Oh Valley in Los Angeles County, California. It was built in 1964 and reconstructed in 1995, so it is 61 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 220,000 vehicles a day, roughly 10% of them trucks, projected to reach 206,213 by 2045. The structure is 563 ft (171.6 m) long and 157 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 605
CrossesRivergrade Oh Valley
Location07-LA-605-R19.39-IDY
RouteInterstate 605
Coordinates34.054, -118.00417
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 inspectionMarch 2024
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 rating52.9 US tons
Inventory rating31.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20
Structure length563 ft (171.6 m)
Longest span80 ft (24.4 m)
Deck width157 ft (47.8 m)
Roadway width150 ft (45.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220,000 (2022)
Projected traffic206,213 by 2045
Trucks10%
Lanes on structure12
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 605 over Rivergrade Oh Valley built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1995.

What condition is Interstate 605 over Rivergrade Oh Valley 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 March 2024.

How much traffic does Interstate 605 over Rivergrade Oh Valley carry?

About 220,000 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Interstate 605 over Rivergrade Oh Valley?

The structure is 563 ft (171.6 m) long with a longest span of 80 ft (24.4 m) and a deck 157 ft wide.

Who owns Interstate 605 over Rivergrade Oh Valley?

It is owned by the State Highway Agency.