Structure 56C0545 · Riverside County, CA

47th Av (palm Cyn) over La Quinta Channel

Carries 47th Av (palm Cyn) over La Quinta Channel, 0.1 Mi E/o Jefferson ST.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT132 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

132 ft end to end, longest span 29 ft. 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 slab bridge.

Built1981rebuilt 2008
Length132.2 ft40.3 m
Daily traffic29,900counted 2020
Last inspectedJanuary 2025every 24 months

Location

StateCalifornia
CountyRiverside
Location0.1 Mi E/o Jefferson ST
Carries47th Av (palm Cyn)
CrossesLa Quinta Channel
Coordinates33.70720, -116.26834

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length132.2 ft (40.3 m)
Max Span29.2 ft (8.9 m)
Deck Width123.4 ft (37.6 m)
Deck Area1515.3 sq m
Main Spans5
Year Built1981 (reconstructed 2008)

Traffic

Avg Daily Traffic29,900 (2020)
Truck Traffic10%
Lanes On Bridge9

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 Number56C0545

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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