US Bridges

I 80 over Truckee River & SPRR

Fair

Washoe County, Nevada · West of Reno · Structure no. G 772E

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,070 ft
4 main spans
Daily traffic
18,750
2021 count
Owner
State
State Highway Agency

About this bridge

I 80 over Truckee River & SPRR is a steel continuous stringer/multi-beam or girder carrying I 80 over Truckee River & SPRR in Washoe County, Nevada. It was built in 1964, so it is 61 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 6 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 18,750 vehicles a day, roughly 17% of them trucks, projected to reach 43,433 by 2040. The structure is 1,070 ft (326.1 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesI 80
CrossesTruckee River & SPRR
LocationWest of Reno
RouteInterstate 80
CountyWashoe County
StateNevada
Coordinates39.51151, -119.9533
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+7 approach)
Design loadHS 20 + Mod
Structure length1,070 ft (326.1 m)
Longest span120 ft (36.6 m)
Deck width43 ft (13.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,750 (2021)
Projected traffic43,433 by 2040
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed6.8 mi (11 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$5.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 80 over Truckee River & SPRR built?

It was built in 1964, making it 61 years old in 2025.

What condition is I 80 over Truckee River & 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 June 2024.

How much traffic does I 80 over Truckee River & SPRR carry?

About 18,750 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is I 80 over Truckee River & SPRR?

The structure is 1,070 ft (326.1 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.

Who owns I 80 over Truckee River & SPRR?

It is owned by the State Highway Agency.