Structure 39C0047 · Merced County, CA

Santa Fe Avenue over Mariposa Creek

Carries Santa Fe Avenue over Mariposa Creek, 1.0 Mi NW Le Grand RD.

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
SEMI-TRUCK · 72 FT197 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

197 ft end to end, longest span 30 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.

Built196660 years old
Length196.9 ft60 m
Daily traffic2,177counted 2014
Last inspectedSeptember 2022every 48 months

Location

StateCalifornia
CountyMerced
Location1.0 Mi NW Le Grand RD
CarriesSanta Fe Avenue
CrossesMariposa Creek
Coordinates37.23926, -120.25917

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length196.9 ft (60 m)
Max Span29.9 ft (9.1 m)
Deck Width32.8 ft (10 m)
Deck Area600 sq m
Main Spans7
Year Built1966

Traffic

Avg Daily Traffic2,177 (2014)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number39C0047

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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