US Bridges

Imperial HWY-W105 over Route 105 & Lrt

Good

Los Angeles County, California · 07-LA-105-R3.50-HAW · Structure no. 53 2653K

Built
1993
32 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
487 ft
4 main spans
Daily traffic
6,630
2016 count
Owner
State
State Highway Agency

About this bridge

Imperial HWY-W105 over Route 105 & Lrt is a concrete continuous box beam or girders - multiple carrying Imperial HWY-W105 over Route 105 & Lrt 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 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 6,630 vehicles a day, roughly 2% of them trucks, projected to reach 8,006 by 2042. The structure is 487 ft (148.4 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesImperial HWY-W105
CrossesRoute 105 & Lrt
Location07-LA-105-R3.50-HAW
RouteInterstate 105
Coordinates33.93188, -118.34637
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+4 approach)
Design loadHS 20 + Mod
Structure length487 ft (148.4 m)
Longest span104 ft (31.7 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,630 (2016)
Projected traffic8,006 by 2042
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Imperial HWY-W105 over Route 105 & Lrt built?

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

What condition is Imperial HWY-W105 over Route 105 & Lrt 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 April 2024.

How much traffic does Imperial HWY-W105 over Route 105 & Lrt carry?

About 6,630 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Imperial HWY-W105 over Route 105 & Lrt?

The structure is 487 ft (148.4 m) long with a longest span of 104 ft (31.7 m) and a deck 35 ft wide.

Who owns Imperial HWY-W105 over Route 105 & Lrt?

It is owned by the State Highway Agency.