Structure 53 2460 · Los Angeles County, CA

State Route 60 over Joyce Drain

Carries State Route 60 over Joyce Drain, 07-la-060-20.06.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT34 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 34 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built196759 years old
Length34.1 ft10.4 m
Daily traffic204,000counted 2015
Last inspectedJanuary 2025every 48 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-060-20.06
CarriesState Route 60
CrossesJoyce Drain
Coordinates33.99399, -117.89501

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length34.1 ft (10.4 m)
Max Span12.1 ft (3.7 m)
Deck Width163.7 ft (49.9 m)
Deck Area519.0 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic204,000 (2015)
Lanes On Bridge8

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53 2460

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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