Structure 50 0197 · Kern County, CA

State Route 46 EB over California Aqueduct

Carries State Route 46 EB over California Aqueduct, 06-ker-046-29.98.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT204 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

204 ft end to end, longest span 102 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 box-beam bridge.

Built1967rebuilt 2002
Length204.1 ft62.2 m
Daily traffic12,000counted 2009
Last inspectedApril 2024every 24 months

Location

StateCalifornia
CountyKern
Location06-ker-046-29.98
CarriesState Route 46 EB
CrossesCalifornia Aqueduct
Coordinates35.61599, -119.69909

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length204.1 ft (62.2 m)
Max Span102.0 ft (31.1 m)
Deck Width47.6 ft (14.5 m)
Deck Area901.9 sq m
Main Spans2
Year Built1967 (reconstructed 2002)

Traffic

Avg Daily Traffic12,000 (2009)
Truck Traffic36%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number50 0197

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.

Nearby Bridges