Structure 56C0309 · Riverside County, CA

Auto Center Drive over San Jacinto River

Carries Auto Center Drive over San Jacinto River, 0.2 Mi Nw/o Railrd Cyn RD.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT305 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

305 ft end to end, longest span 67 ft: about 4 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 tee-beam bridge.

Built195769 years old
Length304.8 ft92.9 m
Daily traffic6,507counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountyRiverside
Location0.2 Mi Nw/o Railrd Cyn RD
CarriesAuto Center Drive
CrossesSan Jacinto River
Coordinates33.66283, -117.30230

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length304.8 ft (92.9 m)
Max Span66.9 ft (20.4 m)
Deck Width33.5 ft (10.2 m)
Deck Area947.6 sq m
Main Spans5
Year Built1957

Traffic

Avg Daily Traffic6,507 (2021)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number56C0309

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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