US Bridges

SR427 Old US40 over Truckee Rvr

Fair

Washoe County, Nevada · Wadsworth · Structure no. B 16

Built
1993
32 years old
Condition
Fair
inspected May 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
270 ft
2 main spans
Daily traffic
2,700
2021 count
Owner
State
State Highway Agency

About this bridge

SR427 Old US40 over Truckee Rvr is a prestressed concrete continuous box beam or girders - multiple carrying SR427 Old US40 over Truckee Rvr in Washoe County, Nevada. It was built in 1993, so it is 32 years old, younger 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 2,700 vehicles a day, roughly 12% of them trucks, projected to reach 4,500 by 2040. The structure is 270 ft (82.3 m) long and 52 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR427 Old US40
CrossesTruckee Rvr
LocationWadsworth
RouteState Highway 427
CountyWashoe County
StateNevada
Coordinates39.63203, -119.28303
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating53.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length270 ft (82.3 m)
Longest span134 ft (40.8 m)
Deck width52 ft (15.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2021)
Projected traffic4,500 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR427 Old US40 over Truckee Rvr built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR427 Old US40 over Truckee Rvr 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 2021.

How much traffic does SR427 Old US40 over Truckee Rvr carry?

About 2,700 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR427 Old US40 over Truckee Rvr?

The structure is 270 ft (82.3 m) long with a longest span of 134 ft (40.8 m) and a deck 52 ft wide.

Who owns SR427 Old US40 over Truckee Rvr?

It is owned by the State Highway Agency.