Structure 46 0056L · Tulare County, CA

State Route 99 SB over South Branch Tule River

Carries State Route 99 SB over South Branch Tule River, 06-tul-099-21.43.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT301 FT ACROSS50 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 301 ft across with 25 openings: about 4 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, so those are drawn as typical for a culvert.

Built1931rebuilt 2013
Length300.9 ft91.7 m
Daily traffic21,500counted 2009
Last inspectedAugust 2024every 24 months

Location

StateCalifornia
CountyTulare
Location06-tul-099-21.43
CarriesState Route 99 SB
CrossesSouth Branch Tule River
Coordinates36.09358, -119.32206

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length300.9 ft (91.7 m)
Max Span11.8 ft (3.6 m)
Deck Width43.0 ft (13.1 m)
Deck Area1201.3 sq m
Main Spans25
Year Built1931 (reconstructed 2013)

Traffic

Avg Daily Traffic21,500 (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 0056L

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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