Structure 53 3032 · Los Angeles County, CA

State Route 47 over Cerritos Channel

Carries State Route 47 over Cerritos Channel, 07-la-047-3.58-lbch.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
4,122 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

4,122 ft end to end, longest span 220 ft: about 11 football fields. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built20224 years old
Length4121.7 ft1256.3 m
Daily traffic11,000counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-047-3.58-lbch
CarriesState Route 47
CrossesCerritos Channel
Coordinates33.75961, -118.23856

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length4121.7 ft (1256.3 m)
Max Span220.1 ft (67.1 m)
Deck Width109.9 ft (33.5 m)
Deck Area42086.1 sq m
Main Spans24
Year Built2022

Traffic

Avg Daily Traffic11,000 (2020)
Truck Traffic40%
Lanes On Bridge5
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53 3032

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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