Structure 30 0019 · Calaveras County, CA

State Route 49 over Angels Creek

Carries State Route 49 over Angels Creek, 10-cal-049-7.16-ang.

Overall conditionFair

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

How ratings work
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 5/9 · sets the rating

50 ft end to end. 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 deck arch.

Built1909117 years old
Length49.9 ft15.2 m
Daily traffic9,100counted 2009
Last inspectedMay 2023every 24 months

Location

StateCalifornia
CountyCalaveras
Location10-cal-049-7.16-ang
CarriesState Route 49
CrossesAngels Creek
Coordinates38.06797, -120.53885

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length49.9 ft (15.2 m)
Max Span47.9 ft (14.6 m)
Deck Width32.2 ft (9.8 m)
Deck Area149.0 sq m
Main Spans1
Year Built1909

Traffic

Avg Daily Traffic9,100 (2009)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number30 0019

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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