Structure 46 0060R · Tulare County, CA

State Route 99 NB over Elk Bayou

Carries State Route 99 NB over Elk Bayou, 06-tul-099-25.01.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT124 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

124 ft end to end, longest span 31 ft. 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.

Built1949rebuilt 1982
Length124.0 ft37.8 m
Daily traffic23,500counted 2009
Last inspectedAugust 2024every 24 months

Location

StateCalifornia
CountyTulare
Location06-tul-099-25.01
CarriesState Route 99 NB
CrossesElk Bayou
Coordinates36.14529, -119.32906

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length124.0 ft (37.8 m)
Max Span31.5 ft (9.6 m)
Deck Width42.3 ft (12.9 m)
Deck Area487.6 sq m
Main Spans4
Year Built1949 (reconstructed 1982)

Traffic

Avg Daily Traffic23,500 (2009)
Truck Traffic22%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number46 0060R

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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