Structure 50C0374 · Kern County, CA

Snow Road over Calloway Canal

Carries Snow Road over Calloway Canal, 0.8 Mi W Calloway DR.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
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 FT43 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

43 ft end to end. 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 deck arch.

Built200719 years old
Length42.7 ft13 m
Daily traffic5,253counted 2008
Last inspectedNovember 2022every 48 months

Location

StateCalifornia
CountyKern
Location0.8 Mi W Calloway DR
CarriesSnow Road
CrossesCalloway Canal
Coordinates35.42681, -119.12522

Physical Characteristics

MaterialPrestressed Concrete
DesignArch - Deck
Total Length42.7 ft (13 m)
Max Span42.7 ft (13 m)
Deck Width124.7 ft (38 m)
Deck Area494 sq m
Main Spans13
Year Built2007

Traffic

Avg Daily Traffic5,253 (2008)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2022
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number50C0374

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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