US Bridges

N605-W210 Conn over SR 605 SR 210 & Ramps

Good

Los Angeles County, California · 07-LA-605-25.60-IRW · Structure no. 53 1972G

Built
1968
57 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
936 ft
2 main spans
Daily traffic
36,000
2022 count
Owner
State
State Highway Agency

About this bridge

N605-W210 Conn over SR 605 SR 210 & Ramps is a prestressed concrete continuous box beam or girders - multiple carrying N605-W210 Conn over SR 605 SR 210 & Ramps in Los Angeles County, California. It was built in 1968, so it is 57 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 36,000 vehicles a day, roughly 2% of them trucks, projected to reach 44,101 by 2045. The structure is 936 ft (285.4 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN605-W210 Conn
CrossesSR 605 SR 210 & Ramps
Location07-LA-605-25.60-IRW
RouteInterstate 605
Coordinates34.13544, -117.96076
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 inspectionMay 2024
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating87.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadHS 20 + Mod
Structure length936 ft (285.4 m)
Longest span196 ft (59.7 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,000 (2022)
Projected traffic44,101 by 2045
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 N605-W210 Conn over SR 605 SR 210 & Ramps built?

It was built in 1968, making it 57 years old in 2025.

What condition is N605-W210 Conn over SR 605 SR 210 & 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 May 2024.

How much traffic does N605-W210 Conn over SR 605 SR 210 & Ramps carry?

About 36,000 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is N605-W210 Conn over SR 605 SR 210 & Ramps?

The structure is 936 ft (285.4 m) long with a longest span of 196 ft (59.7 m) and a deck 41 ft wide.

Who owns N605-W210 Conn over SR 605 SR 210 & Ramps?

It is owned by the State Highway Agency.