US Bridges

SR439 USA Parkway over Wash

Good

Lyon County, Nevada · 0.227 Miles N of US50 · Structure no. B3204

Built
2017
8 years old
Condition
Good
inspected June 2021
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
4,850
2021 count
Owner
State
State Highway Agency

About this bridge

SR439 USA Parkway over Wash is a concrete culvert carrying SR439 USA Parkway over Wash in Lyon County, Nevada. It was built in 2017, so it is 8 years old, younger than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,850 vehicles a day, roughly 12% of them trucks, projected to reach 12,410 by 2040. The structure is 26 ft (7.9 m) long and 101 ft wide. If it were closed, the detour would be 33.6 mi (54 km).

Location

Open in Google Maps
CarriesSR439 USA Parkway
CrossesWash
Location0.227 Miles N of US50
RouteState Highway 439
CountyLyon County
StateNevada
Coordinates39.4034, -119.26907
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width101 ft (30.8 m)
Roadway width101 ft (30.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,850 (2021)
Projected traffic12,410 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed33.6 mi (54 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR439 USA Parkway over Wash built?

It was built in 2017, making it 8 years old in 2025.

What condition is SR439 USA Parkway over Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2021.

How much traffic does SR439 USA Parkway over Wash carry?

About 4,850 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR439 USA Parkway over Wash?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 101 ft wide.

Who owns SR439 USA Parkway over Wash?

It is owned by the State Highway Agency.