Structure 53C1999 · Los Angeles County, CA

Whites Cyn RD over Santa Clara Riv

Carries Whites Cyn RD over Santa Clara Riv, 0.3mi S/o Soledad Cyn RD.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT604 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

604 ft end to end, longest span 72 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 multi-beam bridge.

Built199135 years old
Length604.0 ft184.1 m
Daily traffic29,799counted 2014
Last inspectedJanuary 2022every 48 months

Location

StateCalifornia
CountyLos Angeles
Location0.3mi S/o Soledad Cyn RD
CarriesWhites Cyn RD
CrossesSanta Clara Riv
Coordinates34.41219, -118.47299

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length604.0 ft (184.1 m)
Max Span71.9 ft (21.9 m)
Deck Width98.1 ft (29.9 m)
Deck Area5504.6 sq m
Main Spans8
Year Built1991

Traffic

Avg Daily Traffic29,799 (2014)
Truck Traffic2%
Lanes On Bridge6

Inspection & Ownership

Last InspectionJanuary 2022
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C1999

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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