Structure 53 1219 · Los Angeles County, CA

Laurel Cyn BLVD over Route 5

Carries Laurel Cyn BLVD over Route 5, 07-la-005-35.94-la.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT309 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

309 ft end to end, longest span 120 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built196363 years old
Length308.7 ft94.1 m
Daily traffic14,983counted 2018
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-005-35.94-la
CarriesLaurel Cyn BLVD
CrossesRoute 5
Coordinates34.23117, -118.40265

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length308.7 ft (94.1 m)
Max Span120.4 ft (36.7 m)
Deck Width94.2 ft (28.7 m)
Deck Area2700.7 sq m
Main Spans3
Year Built1963

Traffic

Avg Daily Traffic14,983 (2018)
Truck Traffic3%
Lanes On Bridge5
Lanes Under Bridge10

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 1219

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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