US Bridges

E105-S605 Conn over S605-ROSECRANS Offrmp

Good

Los Angeles County, California · 07-LA-105-R17.78-NRW · Structure no. 53 2704G

Built
1987
38 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
523 ft
4 main spans
Daily traffic
20,500
2020 count
Owner
State
State Highway Agency

About this bridge

E105-S605 Conn over S605-ROSECRANS Offrmp is a prestressed concrete continuous box beam or girders - multiple carrying E105-S605 Conn over S605-ROSECRANS Offrmp in Los Angeles County, California. It was built in 1987, so it is 38 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 20,500 vehicles a day, roughly 6% of them trucks, projected to reach 22,525 by 2041. The structure is 523 ft (159.3 m) long and 42 ft wide.

CarriesE105-S605 Conn
CrossesS605-ROSECRANS Offrmp
Location07-LA-105-R17.78-NRW
RouteInterstate 105
Coordinates33.90783, -118.10567
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 inspectionJune 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 alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length523 ft (159.3 m)
Longest span140 ft (42.7 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,500 (2020)
Projected traffic22,525 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 E105-S605 Conn over S605-ROSECRANS Offrmp built?

It was built in 1987, making it 38 years old in 2025.

What condition is E105-S605 Conn over S605-ROSECRANS Offrmp 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 June 2024.

How much traffic does E105-S605 Conn over S605-ROSECRANS Offrmp carry?

About 20,500 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is E105-S605 Conn over S605-ROSECRANS Offrmp?

The structure is 523 ft (159.3 m) long with a longest span of 140 ft (42.7 m) and a deck 42 ft wide.

Who owns E105-S605 Conn over S605-ROSECRANS Offrmp?

It is owned by the State Highway Agency.