Structure 30C0051 · Calaveras County, CA

Dogtown RD over Indian Creek

Carries Dogtown RD over Indian Creek, 8.6 Mi N/o SR 49.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

29 ft end to end, longest span 13 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.

Built193096 years old
Length28.9 ft8.8 m
Daily traffic35counted 2011
Last inspectedMarch 2024every 24 months

Location

StateCalifornia
CountyCalaveras
Location8.6 Mi N/o SR 49
CarriesDogtown RD
CrossesIndian Creek
Coordinates38.14588, -120.56918

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length28.9 ft (8.8 m)
Max Span13.1 ft (4 m)
Deck Width18.7 ft (5.7 m)
Deck Area50.2 sq m
Main Spans2
Year Built1930

Traffic

Avg Daily Traffic35 (2011)
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number30C0051

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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