Structure 53 1063 · Los Angeles County, CA

U.s. Highway 101 over Canoga AVE

Carries U.s. Highway 101 over Canoga AVE, 07-la-101-24.85-la.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT92 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

92 ft end to end. Lengths and the car 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.

Built195769 years old
Length91.9 ft28 m
Daily traffic285,000counted 2018
Last inspectedMay 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-101-24.85-la
CarriesU.s. Highway 101
CrossesCanoga AVE
Coordinates34.16962, -118.59733

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length91.9 ft (28 m)
Max Span89.9 ft (27.4 m)
Deck Width139.4 ft (42.5 m)
Deck Area1,190 sq m
Main Spans1
Year Built1957

Traffic

Avg Daily Traffic285,000 (2018)
Truck Traffic10%
Lanes On Bridge10
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 1063

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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