US Bridges

S605-W105 Conn over FIRESTONE-S605 Rmp

Good

Los Angeles County, California · 07-LA-605-R8.04-NRW · Structure no. 53 2705F

Built
1992
33 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
163 ft
1 main span
Daily traffic
26,267
2021 count
Owner
State
State Highway Agency

About this bridge

S605-W105 Conn over FIRESTONE-S605 Rmp is a concrete slab carrying S605-W105 Conn over FIRESTONE-S605 Rmp in Los Angeles County, California. It was built in 1992, so it is 33 years old, younger 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 26,267 vehicles a day, roughly 2% of them trucks, projected to reach 30,909 by 2042. The structure is 163 ft (49.6 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS605-W105 Conn
CrossesFIRESTONE-S605 Rmp
Location07-LA-605-R8.04-NRW
RouteInterstate 605
Coordinates33.91984, -118.10504
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 inspectionAugust 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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length163 ft (49.6 m)
Longest span163 ft (49.6 m)
Deck width66 ft (20.2 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,267 (2021)
Projected traffic30,909 by 2042
Trucks2%
Lanes on structure3
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 S605-W105 Conn over FIRESTONE-S605 Rmp built?

It was built in 1992, making it 33 years old in 2025.

What condition is S605-W105 Conn over FIRESTONE-S605 Rmp 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 August 2023.

How much traffic does S605-W105 Conn over FIRESTONE-S605 Rmp carry?

About 26,267 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is S605-W105 Conn over FIRESTONE-S605 Rmp?

The structure is 163 ft (49.6 m) long with a longest span of 163 ft (49.6 m) and a deck 66 ft wide.

Who owns S605-W105 Conn over FIRESTONE-S605 Rmp?

It is owned by the State Highway Agency.