Structure 26C0001 · Amador County, CA

Latrobe Road over Cosumnes River

Carries Latrobe Road over Cosumnes River, Amador-el Dorado Co Line.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT398 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

398 ft end to end, longest span 75 ft: about 6 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 tee-beam bridge.

Built195967 years old
Length398.0 ft121.3 m
Daily traffic3,244counted 2013
Last inspectedApril 2024every 24 months

Location

StateCalifornia
CountyAmador
LocationAmador-el Dorado Co Line
CarriesLatrobe Road
CrossesCosumnes River
Coordinates38.52185, -120.95571

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length398.0 ft (121.3 m)
Max Span75.1 ft (22.9 m)
Deck Width28.5 ft (8.7 m)
Deck Area1055.3 sq m
Main Spans4
Year Built1959

Traffic

Avg Daily Traffic3,244 (2013)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number26C0001

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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