Structure 50 0241 · Kern County, CA

State Route 99 over Pacheco Road

Carries State Route 99 over Pacheco Road, 06-ker-099-20.56.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT164 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

164 ft end to end, longest span 75 ft: about 2 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 tee-beam bridge.

Built1962rebuilt 1989
Length164.0 ft50 m
Daily traffic83,000counted 2009
Last inspectedDecember 2021every 48 months

Location

StateCalifornia
CountyKern
Location06-ker-099-20.56
CarriesState Route 99
CrossesPacheco Road
Coordinates35.31012, -119.03430

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length164.0 ft (50 m)
Max Span75.1 ft (22.9 m)
Deck Width139.1 ft (42.4 m)
Deck Area2,120 sq m
Main Spans3
Year Built1962 (reconstructed 1989)

Traffic

Avg Daily Traffic83,000 (2009)
Lanes On Bridge8
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number50 0241

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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