US Bridges

Route 105 & Lrt over Gertrude Drive

Fair

Los Angeles County, California · 07-LA-105-R12.30-LYN · Structure no. 53 2496

Built
1987
38 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
111 ft
1 main span
Daily traffic
237,000
2020 count
Owner
State
State Highway Agency

About this bridge

Route 105 & Lrt over Gertrude Drive is a prestressed concrete box beam or girders - multiple carrying Route 105 & Lrt over Gertrude Drive 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 fair condition with a lowest component rating of 6 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 237,000 vehicles a day, roughly 7% of them trucks, projected to reach 246,360 by 2041. The structure is 111 ft (33.7 m) long and 188 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 105 & Lrt
CrossesGertrude Drive
Location07-LA-105-R12.30-LYN
RouteInterstate 105
CountyLos Angeles County
StateCalifornia
Coordinates33.9197, -118.19874
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 alignment9: Superior to present desirable criteria
Operating rating51.8 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length111 ft (33.7 m)
Longest span111 ft (33.7 m)
Deck width188 ft (57.3 m)
Roadway width153 ft (46.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic237,000 (2020)
Projected traffic246,360 by 2041
Trucks7%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesHighway
Detour if closed1.2 mi (2 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 Route 105 & Lrt over Gertrude Drive built?

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

What condition is Route 105 & Lrt over Gertrude Drive 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 Gertrude Drive carry?

About 237,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Route 105 & Lrt over Gertrude Drive?

The structure is 111 ft (33.7 m) long with a longest span of 111 ft (33.7 m) and a deck 188 ft wide.

Who owns Route 105 & Lrt over Gertrude Drive?

It is owned by the State Highway Agency.