Structure 50 0051 · Kern County, CA

State Route 99 over Canal Lateral 29

Carries State Route 99 over Canal Lateral 29, 06-ker-099-27.80.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT33 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 33 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built1933rebuilt 1964
Length33.1 ft10.1 m
Daily traffic130,000counted 2018
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountyKern
Location06-ker-099-27.80
CarriesState Route 99
CrossesCanal Lateral 29
Coordinates35.41170, -119.05387

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length33.1 ft (10.1 m)
Max Span16.1 ft (4.9 m)
Deck Width201.8 ft (61.5 m)
Deck Area621.1 sq m
Main Spans2
Year Built1933 (reconstructed 1964)

Traffic

Avg Daily Traffic130,000 (2018)
Truck Traffic28%
Lanes On Bridge9

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number50 0051

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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