Structure 47C0037 · Mono County, CA

Upper Sum Mdws RD over Upper Summers Meadows RD

Carries Upper Sum Mdws RD over Upper Summers Meadows RD, 0.3 Mi W Highway 395.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

60 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 through truss.

Built20188 years old
Length60.0 ft18.3 m
Daily traffic10counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountyMono
Location0.3 Mi W Highway 395
CarriesUpper Sum Mdws RD
CrossesUpper Summers Meadows RD
Coordinates38.17361, -119.23361

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length60.0 ft (18.3 m)
Max Span60.0 ft (18.3 m)
Deck Width17.4 ft (5.3 m)
Deck Area97.0 sq m
Main Spans1
Year Built2018

Traffic

Avg Daily Traffic10 (2023)
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number47C0037

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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