Structure 50 0249 · Kern County, CA

Wible Road over State Route 99

Carries Wible Road over State Route 99, 06-ker-099-21.96-bkd.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT430 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

430 ft end to end, longest span 151 ft: about 6 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 box-beam bridge.

Built196264 years old
Length430.1 ft131.1 m
Daily traffic40,000counted 2018
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountyKern
Location06-ker-099-21.96-bkd
CarriesWible Road
CrossesState Route 99
Coordinates35.32945, -119.03966

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length430.1 ft (131.1 m)
Max Span150.9 ft (46 m)
Deck Width87.9 ft (26.8 m)
Deck Area3513.5 sq m
Main Spans4
Year Built1962

Traffic

Avg Daily Traffic40,000 (2018)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge8

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number50 0249

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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