US Bridges

Clark Avenue over Route 105 Lrt

Fair

Los Angeles County, California · 07-LA-105-R16.14-DNY · Structure no. 53 2570

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
305 ft
2 main spans
Daily traffic
12,400
2020 count
Owner
State
State Highway Agency

About this bridge

Clark Avenue over Route 105 Lrt is a prestressed concrete continuous box beam or girders - multiple carrying Clark Avenue over Route 105 Lrt in Los Angeles County, California. It was built in 1989, so it is 36 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 12,400 vehicles a day, roughly 1% of them trucks, projected to reach 14,109 by 2042. The structure is 305 ft (93 m) long and 72 ft wide.

CarriesClark Avenue
CrossesRoute 105 Lrt
Location07-LA-105-R16.14-DNY
RouteCity Street 0L066
Coordinates33.91269, -118.13402
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length305 ft (93 m)
Longest span153 ft (46.6 m)
Deck width72 ft (21.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,400 (2020)
Projected traffic14,109 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Clark Avenue over Route 105 Lrt built?

It was built in 1989, making it 36 years old in 2025.

What condition is Clark Avenue over Route 105 Lrt 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 June 2024.

How much traffic does Clark Avenue over Route 105 Lrt carry?

About 12,400 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Clark Avenue over Route 105 Lrt?

The structure is 305 ft (93 m) long with a longest span of 153 ft (46.6 m) and a deck 72 ft wide.

Who owns Clark Avenue over Route 105 Lrt?

It is owned by the State Highway Agency.