Structure 39C0082 · Merced County, CA

Cunningham Road over Mariposa Creek

Carries Cunningham Road over Mariposa Creek, 3.3 Mi S Childs AVE.

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
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT94 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

94 ft end to end, longest span 19 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built1920rebuilt 1975
Length94.2 ft28.7 m
Daily traffic441counted 2015
Last inspectedSeptember 2024every 24 months

Location

StateCalifornia
CountyMerced
Location3.3 Mi S Childs AVE
CarriesCunningham Road
CrossesMariposa Creek
Coordinates37.23894, -120.25261

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length94.2 ft (28.7 m)
Max Span18.7 ft (5.7 m)
Deck Width32.8 ft (10 m)
Deck Area287 sq m
Main Spans5
Year Built1920 (reconstructed 1975)

Traffic

Avg Daily Traffic441 (2015)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number39C0082

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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