Structure 56C0583 · Riverside County, CA

Harrison ST over Loftus Ditch

Carries Harrison ST over Loftus Ditch, 0.8 Mi S/o Pierce ST.

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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT86 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

86 ft end to end, longest span 28 ft. 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 slab bridge.

Built197650 years old
Length86.0 ft26.2 m
Daily traffic1,000counted 2012
Last inspectedMarch 2021every 48 months

Location

StateCalifornia
CountyRiverside
Location0.8 Mi S/o Pierce ST
CarriesHarrison ST
CrossesLoftus Ditch
Coordinates33.47874, -116.11117

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length86.0 ft (26.2 m)
Max Span27.9 ft (8.5 m)
Deck Width42.7 ft (13 m)
Deck Area340.6 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic1,000 (2012)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2021
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number56C0583

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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