US Bridges

Route 105 & Lrt over W105-S710 Conn

Fair

Los Angeles County, California · 07-LA-105-R13.47-PRM · Structure no. 53 2419

Built
1993
32 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
1,238 ft
7 main spans
Daily traffic
217,000
2020 count
Owner
State
State Highway Agency

About this bridge

Route 105 & Lrt over W105-S710 Conn is a prestressed concrete continuous box beam or girders - multiple carrying Route 105 & Lrt over W105-S710 Conn in Los Angeles County, California. It was built in 1993, so it is 32 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 217,000 vehicles a day, roughly 7% of them trucks, projected to reach 229,750 by 2044. The structure is 1,238 ft (377.3 m) long and 218 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 105 & Lrt
CrossesW105-S710 Conn
Location07-LA-105-R13.47-PRM
RouteInterstate 105
Coordinates33.91281, -118.18089
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: 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 spans7 (+4 approach)
Design loadHS 20 + Mod
Structure length1,238 ft (377.3 m)
Longest span158 ft (48.1 m)
Deck width218 ft (66.4 m)
Roadway width166 ft (50.5 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic217,000 (2020)
Projected traffic229,750 by 2044
Trucks7%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesHighway and waterway
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 105 & Lrt over W105-S710 Conn built?

It was built in 1993, making it 32 years old in 2025.

What condition is Route 105 & Lrt over W105-S710 Conn in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Route 105 & Lrt over W105-S710 Conn carry?

About 217,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Route 105 & Lrt over W105-S710 Conn?

The structure is 1,238 ft (377.3 m) long with a longest span of 158 ft (48.1 m) and a deck 218 ft wide.

Who owns Route 105 & Lrt over W105-S710 Conn?

It is owned by the State Highway Agency.