Structure 46 0258 · Tulare County, CA

State Route 99 over White River Sink

Carries State Route 99 over White River Sink, 06-tul-099-4.56.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT72 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

72 ft end to end, longest span 30 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.

Built200125 years old
Length72.2 ft22 m
Daily traffic44,500counted 2009
Last inspectedAugust 2022every 48 months

Location

StateCalifornia
CountyTulare
Location06-tul-099-4.56
CarriesState Route 99
CrossesWhite River Sink
Coordinates35.85473, -119.26713

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length72.2 ft (22 m)
Max Span29.5 ft (9 m)
Deck Width132.5 ft (40.4 m)
Deck Area888.8 sq m
Main Spans3
Year Built2001

Traffic

Avg Daily Traffic44,500 (2009)
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number46 0258

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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