Structure I1008 · Washoe County, NV

Vista Bl over I 80

Carries Vista Bl over I 80, Sparks.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT175 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

175 ft end to end, longest span 54 ft: about 2 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 box-beam bridge.

Built198541 years old
Length174.9 ft53.3 m
Daily traffic35,000counted 2021
Last inspectedMay 2022every 48 months

Location

StateNevada
CountyWashoe
LocationSparks
CarriesVista Bl
CrossesI 80
Coordinates39.52633, -119.70059

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length174.9 ft (53.3 m)
Max Span54.1 ft (16.5 m)
Deck Width90.9 ft (27.7 m)
Deck Area1476.4 sq m
Main Spans4
Year Built1985

Traffic

Avg Daily Traffic35,000 (2021)
Truck Traffic19%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMay 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberI1008

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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