Structure 53 0680 · Los Angeles County, CA

U.s. Highway 101 over Argyle Av & Franklin Av

Carries U.s. Highway 101 over Argyle Av & Franklin Av, 07-la-101-7.06-la.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT602 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

602 ft end to end, longest span 110 ft: about 1.7 football fields. 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.

Built1953rebuilt 1977
Length602.0 ft183.5 m
Daily traffic175,000counted 2020
Last inspectedFebruary 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-101-7.06-la
CarriesU.s. Highway 101
CrossesArgyle Av & Franklin Av
Coordinates34.10481, -118.32485

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length602.0 ft (183.5 m)
Max Span109.9 ft (33.5 m)
Deck Width142.1 ft (43.3 m)
Deck Area7945.6 sq m
Main Spans7
Year Built1953 (reconstructed 1977)

Traffic

Avg Daily Traffic175,000 (2020)
Truck Traffic10%
Lanes On Bridge9
Lanes Under Bridge12

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 0680

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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