Structure 25C0125 · El Dorado County, CA

Martin Avenue over Trout Creek

Carries Martin Avenue over Trout Creek, 0.1 Mi West Of Black Bart.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
20 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

20 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built199828 years old
Length20.0 ft6.1 m
Daily traffic4,220counted 2010
Last inspectedJune 2021every 48 months

Location

StateCalifornia
CountyEl Dorado
Location0.1 Mi West Of Black Bart
CarriesMartin Avenue
CrossesTrout Creek
Coordinates38.91962, -119.97269

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length20.0 ft (6.1 m)
Max Span20.0 ft (6.1 m)
Deck Width36.7 ft (11.2 m)
Deck Area68.3 sq m
Main Spans1
Year Built1998

Traffic

Avg Daily Traffic4,220 (2010)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2021
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number25C0125

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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