Structure B1066W · Elko County, NV

I 80 over Humboldt River & Old Rd.

Carries I 80 over Humboldt River & Old Rd., West Of Elko.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT320 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

320 ft end to end, longest span 130 ft: about 4 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 multi-beam bridge.

Built1971rebuilt 2015
Length319.9 ft97.5 m
Daily traffic5,650counted 2021
Last inspectedAugust 2023every 24 months

Location

StateNevada
CountyElko
LocationWest Of Elko
CarriesI 80
CrossesHumboldt River & Old Rd.
Coordinates40.72364, -116.01746

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length319.9 ft (97.5 m)
Max Span129.9 ft (39.6 m)
Deck Width36.7 ft (11.2 m)
Deck Area1,092 sq m
Main Spans3
Year Built1971 (reconstructed 2015)

Traffic

Avg Daily Traffic5,650 (2021)
Truck Traffic31%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB1066W

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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