Structure 50C0347 · Kern County, CA

Westside Parkway over Friant-kern Canal

Carries Westside Parkway over Friant-kern Canal, Near Brimhall Road.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
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 FT173 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

173 ft end to end, longest span 108 ft: about 2 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 multi-beam bridge.

Built201115 years old
Length172.6 ft52.6 m
Daily traffic20,530counted 2015
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountyKern
LocationNear Brimhall Road
CarriesWestside Parkway
CrossesFriant-kern Canal
Coordinates35.36823, -119.08769

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length172.6 ft (52.6 m)
Max Span107.9 ft (32.9 m)
Deck Width168.0 ft (51.2 m)
Deck Area2693.1 sq m
Main Spans3
Year Built2011

Traffic

Avg Daily Traffic20,530 (2015)
Truck Traffic8%
Lanes On Bridge6

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number50C0347

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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