Structure 53C0019 · Los Angeles County, CA

Willow ST over Los Angeles Riv

Carries Willow ST over Los Angeles Riv, 0.1mi E/o I-710 FWY.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT622 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

622 ft end to end, longest span 66 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 tee-beam bridge.

Built194680 years old
Length622.0 ft189.6 m
Daily traffic35,638counted 2015
Last inspectedJanuary 2025every 24 months

Location

StateCalifornia
CountyLos Angeles
Location0.1mi E/o I-710 FWY
CarriesWillow ST
CrossesLos Angeles Riv
Coordinates33.80424, -118.20649

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length622.0 ft (189.6 m)
Max Span65.9 ft (20.1 m)
Deck Width86.6 ft (26.4 m)
Deck Area5005.4 sq m
Main Spans10
Year Built1946

Traffic

Avg Daily Traffic35,638 (2015)
Truck Traffic3%
Lanes On Bridge6

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C0019

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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