Structure 50 0315R · Kern County, CA

Interstate 5 NB over Kern River Flood Canal

Carries Interstate 5 NB over Kern River Flood Canal, 06-ker-005-71.66.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT213 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 6/9

213 ft end to end, longest span 28 ft: about 3 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 slab bridge.

Built196759 years old
Length212.9 ft64.9 m
Daily traffic16,000counted 2019
Last inspectedOctober 2024every 24 months

Location

StateCalifornia
CountyKern
Location06-ker-005-71.66
CarriesInterstate 5 NB
CrossesKern River Flood Canal
Coordinates35.60018, -119.63974

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length212.9 ft (64.9 m)
Max Span27.9 ft (8.5 m)
Deck Width41.7 ft (12.7 m)
Deck Area824.2 sq m
Main Spans8
Year Built1967

Traffic

Avg Daily Traffic16,000 (2019)
Truck Traffic31%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number50 0315R

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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