US Bridges

I 80W over SPRR

Fair

Humboldt County, Nevada · Winnemucca · Structure no. G 872W

Built
1979
46 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
256 ft
3 main spans
Daily traffic
4,550
2021 count
Owner
State
State Highway Agency

About this bridge

I 80W over SPRR is a steel continuous stringer/multi-beam or girder carrying I 80W over SPRR in Humboldt County, Nevada. It was built in 1979, so it is 46 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,550 vehicles a day, roughly 38% of them trucks, projected to reach 5,200 by 2040. The structure is 256 ft (78 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 80W
CrossesSPRR
LocationWinnemucca
RouteInterstate 80
CountyHumboldt County
StateNevada
Coordinates40.98227, -117.72067
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.9 US tons
Inventory rating42.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length256 ft (78 m)
Longest span118 ft (36 m)
Deck width46 ft (13.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,550 (2021)
Projected traffic5,200 by 2040
Trucks38%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 80W over SPRR built?

It was built in 1979, making it 46 years old in 2025.

What condition is I 80W over SPRR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does I 80W over SPRR carry?

About 4,550 vehicles per day (2021 count), of which roughly 38% are trucks.

How long is I 80W over SPRR?

The structure is 256 ft (78 m) long with a longest span of 118 ft (36 m) and a deck 46 ft wide.

Who owns I 80W over SPRR?

It is owned by the State Highway Agency.