Structure H2294N · Carson City County, NV

I 580n over Carmine ST

Carries I 580n over Carmine ST, Carson City.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT135 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

135 ft end to end. 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 box-beam bridge.

Built200620 years old
Length134.8 ft41.1 m
Daily traffic20,250counted 2021
Last inspectedApril 2021every 48 months

Location

StateNevada
CountyCarson City
LocationCarson City
CarriesI 580n
CrossesCarmine ST
Coordinates39.17919, -119.74279

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length134.8 ft (41.1 m)
Max Span132.9 ft (40.5 m)
Deck Width54.8 ft (16.7 m)
Deck Area686.4 sq m
Main Spans1
Year Built2006

Traffic

Avg Daily Traffic20,250 (2021)
Truck Traffic5%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberH2294N

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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