Structure 53C0296 · Los Angeles County, CA

Sierra HWY over Mint Cyn Wash

Carries Sierra HWY over Mint Cyn Wash, 1.3mi N/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
CAR · 15 FT64 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

64 ft end to end. 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 box-beam bridge.

Built198640 years old
Length64.3 ft19.6 m
Daily traffic14,131counted 2014
Last inspectedJanuary 2022every 48 months

Location

StateCalifornia
CountyLos Angeles
Location1.3mi N/o Soledad Cyn RD
CarriesSierra HWY
CrossesMint Cyn Wash
Coordinates34.43026, -118.44331

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length64.3 ft (19.6 m)
Max Span54.5 ft (16.6 m)
Deck Width97.8 ft (29.8 m)
Deck Area584.1 sq m
Main Spans1
Year Built1986

Traffic

Avg Daily Traffic14,131 (2014)
Truck Traffic4%
Lanes On Bridge4

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 Number53C0296

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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