Structure 53C0114 · Los Angeles County, CA

Castaic RD over Violin Crk

Carries Castaic RD over Violin Crk, 1.0mi N/o Lake Hughes RD.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT54 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

54 ft end to end, longest span 25 ft. 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 slab bridge.

Built193096 years old
Length54.1 ft16.5 m
Daily traffic8,652counted 2017
Last inspectedMarch 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location1.0mi N/o Lake Hughes RD
CarriesCastaic RD
CrossesViolin Crk
Coordinates34.50824, -118.63238

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length54.1 ft (16.5 m)
Max Span24.9 ft (7.6 m)
Deck Width47.9 ft (14.6 m)
Deck Area240.9 sq m
Main Spans2
Year Built1930

Traffic

Avg Daily Traffic8,652 (2017)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C0114

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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