US Bridges

I 80W over SR427 Main ST

Fair

Lyon County, Nevada · Wadsworth - Fernley · Structure no. I 717W

Built
1963
62 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
229 ft
4 main spans
Daily traffic
10,850
2021 count
Owner
State
State Highway Agency

About this bridge

I 80W over SR427 Main ST is a prestressed concrete stringer/multi-beam or girder carrying I 80W over SR427 Main ST in Lyon County, Nevada. It was built in 1963, so it is 62 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 10,850 vehicles a day, roughly 36% of them trucks, projected to reach 13,650 by 2040. The structure is 229 ft (69.8 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 80W
CrossesSR427 Main ST
LocationWadsworth - Fernley
RouteInterstate 80
CountyLyon County
StateNevada
Coordinates39.61634, -119.2651
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length229 ft (69.8 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,850 (2021)
Projected traffic13,650 by 2040
Trucks36%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 80W over SR427 Main ST built?

It was built in 1963, making it 62 years old in 2025.

What condition is I 80W over SR427 Main ST 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 May 2023.

How much traffic does I 80W over SR427 Main ST carry?

About 10,850 vehicles per day (2021 count), of which roughly 36% are trucks.

How long is I 80W over SR427 Main ST?

The structure is 229 ft (69.8 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns I 80W over SR427 Main ST?

It is owned by the State Highway Agency.