Structure 41 0046K · Madera County, CA

S Gateway DR over SR 99

Carries S Gateway DR over SR 99, 06-mad-099-9.74.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT226 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

226 ft end to end, longest span 72 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.

Built1958rebuilt 2008
Length226.0 ft68.9 m
Daily traffic4,380counted 2010
Last inspectedJune 2023every 24 months

Location

StateCalifornia
CountyMadera
Location06-mad-099-9.74
CarriesS Gateway DR
CrossesSR 99
Coordinates36.94864, -120.04833

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length226.0 ft (68.9 m)
Max Span71.9 ft (21.9 m)
Deck Width39.7 ft (12.1 m)
Deck Area833.7 sq m
Main Spans2
Year Built1958 (reconstructed 2008)

Traffic

Avg Daily Traffic4,380 (2010)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number41 0046K

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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