US Bridges

Laurel Cyn Bl Off over Route 5

Good

Los Angeles County, California · 07-LA-118-R11.43R-LA · Structure no. 53 2326S

Built
1976
49 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
236 ft
2 main spans
Daily traffic
3,550
2018 count
Owner
State
State Highway Agency

About this bridge

Laurel Cyn Bl Off over Route 5 is a prestressed concrete continuous box beam or girders - multiple carrying Laurel Cyn Bl Off over Route 5 in Los Angeles County, California. It was built in 1976, so it is 49 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 3,550 vehicles a day, roughly 2% of them trucks, projected to reach 5,008 by 2044. The structure is 236 ft (71.9 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLaurel Cyn Bl Off
CrossesRoute 5
Location07-LA-118-R11.43R-LA
RouteState Highway 118
Coordinates34.26636, -118.44347
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment9: Superior to present desirable criteria
Operating rating70.8 US tons
Inventory rating45.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length236 ft (71.9 m)
Longest span120 ft (36.6 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic3,550 (2018)
Projected traffic5,008 by 2044
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Laurel Cyn Bl Off over Route 5 built?

It was built in 1976, making it 49 years old in 2025.

What condition is Laurel Cyn Bl Off over Route 5 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 March 2024.

How much traffic does Laurel Cyn Bl Off over Route 5 carry?

About 3,550 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Laurel Cyn Bl Off over Route 5?

The structure is 236 ft (71.9 m) long with a longest span of 120 ft (36.6 m) and a deck 27 ft wide.

Who owns Laurel Cyn Bl Off over Route 5?

It is owned by the State Highway Agency.