Structure 53C0828 · Los Angeles County, CA

Lindero Cyn RD over Triunfo Cyn Crk

Carries Lindero Cyn RD over Triunfo Cyn Crk, 1.5mi S/o Us-101 FWY.

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 FT186 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

186 ft end to end, longest span 90 ft: about 3 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.

Built1970rebuilt 1988
Length186.0 ft56.7 m
Daily traffic6,476counted 2015
Last inspectedJune 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location1.5mi S/o Us-101 FWY
CarriesLindero Cyn RD
CrossesTriunfo Cyn Crk
Coordinates34.13220, -118.82212

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length186.0 ft (56.7 m)
Max Span89.6 ft (27.3 m)
Deck Width100.7 ft (30.7 m)
Deck Area1740.7 sq m
Main Spans2
Year Built1970 (reconstructed 1988)

Traffic

Avg Daily Traffic6,476 (2015)
Truck Traffic2%
Lanes On Bridge5

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number53C0828

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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