Structure H1256W · Humboldt County, NV

I 80w over Fr Hu15

Carries I 80w over Fr Hu15, West Of Winnemucca.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT210 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

210 ft end to end, longest span 82 ft: about 3 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.

Built197056 years old
Length210.0 ft64 m
Daily traffic4,775counted 2021
Last inspectedJuly 2021every 48 months

Location

StateNevada
CountyHumboldt
LocationWest Of Winnemucca
CarriesI 80w
CrossesFr Hu15
Coordinates40.94522, -117.76577

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length210.0 ft (64 m)
Max Span82.0 ft (25 m)
Deck Width44.0 ft (13.4 m)
Deck Area857.6 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic4,775 (2021)
Truck Traffic37%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberH1256W

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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