Structure 53C0320 · Los Angeles County, CA

Workman Mill RD over San Jose Crk

Carries Workman Mill RD over San Jose Crk, 0.3mi N/o Sr-60 FWY.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT415 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

415 ft end to end, longest span 59 ft: about 6 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 multi-beam bridge.

Built1952rebuilt 1983
Length415.0 ft126.5 m
Daily traffic30,070counted 2017
Last inspectedNovember 2024every 48 months

Location

StateCalifornia
CountyLos Angeles
Location0.3mi N/o Sr-60 FWY
CarriesWorkman Mill RD
CrossesSan Jose Crk
Coordinates34.03324, -118.01787

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length415.0 ft (126.5 m)
Max Span59.1 ft (18 m)
Deck Width65.9 ft (20.1 m)
Deck Area2542.7 sq m
Main Spans7
Year Built1952 (reconstructed 1983)

Traffic

Avg Daily Traffic30,070 (2017)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C0320

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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