US Bridges

I 80 over SPRR

Fair

Humboldt County, Nevada · West of Winnemucca · Structure no. G 863W

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
337 ft
3 main spans
Daily traffic
5,050
2021 count
Owner
State
State Highway Agency

About this bridge

I 80 over SPRR is a steel continuous stringer/multi-beam or girder carrying I 80 over SPRR in Humboldt County, Nevada. It was built in 1970, so it is 55 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 5,050 vehicles a day, roughly 37% of them trucks, projected to reach 5,027 by 2040. The structure is 337 ft (102.7 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 80
CrossesSPRR
LocationWest of Winnemucca
RouteInterstate 80
CountyHumboldt County
StateNevada
Coordinates40.89028, -117.90695
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.8 US tons
Inventory rating48.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length337 ft (102.7 m)
Longest span130 ft (39.6 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,050 (2021)
Projected traffic5,027 by 2040
Trucks37%
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 80 over SPRR built?

It was built in 1970, making it 55 years old in 2025.

What condition is I 80 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 August 2024.

How much traffic does I 80 over SPRR carry?

About 5,050 vehicles per day (2021 count), of which roughly 37% are trucks.

How long is I 80 over SPRR?

The structure is 337 ft (102.7 m) long with a longest span of 130 ft (39.6 m) and a deck 44 ft wide.

Who owns I 80 over SPRR?

It is owned by the State Highway Agency.