Structure 304-0052 · Imperial County, CA

O&m Canal Roads over All-american Canal

Carries O&m Canal Roads over All-american Canal, 5 Mi NE Of Picacho RD.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT200 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

200 ft end to end, longest span 40 ft: about 3 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 slab bridge.

Built193591 years old
Length200.1 ft61 m
Daily traffic50counted 2012
Last inspectedApril 2024every 24 months

Location

StateCalifornia
CountyImperial
Location5 Mi NE Of Picacho RD
CarriesO&m Canal Roads
CrossesAll-american Canal
Coordinates32.83353, -114.54381

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length200.1 ft (61 m)
Max Span40.0 ft (12.2 m)
Deck Width14.4 ft (4.4 m)
Deck Area268.4 sq m
Main Spans5
Year Built1935

Traffic

Avg Daily Traffic50 (2012)
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerBureau of Reclamation
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0304-0052

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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