US Bridges

SR361 Gabbs Valley over Petrified Wash

Good

Mineral County, Nevada · North of Luning · Structure no. B3271

Built
2019
6 years old
Condition
Good
inspected February 2021
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
370
2021 count
Owner
State
State Highway Agency

About this bridge

SR361 Gabbs Valley over Petrified Wash is a concrete culvert carrying SR361 Gabbs Valley over Petrified Wash in Mineral County, Nevada. It was built in 2019, so it is 6 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 370 vehicles a day, roughly 16% of them trucks, projected to reach 110 by 2038. The structure is 40 ft (12.2 m) long and 174 ft wide. If it were closed, the detour would be 76.4 mi (123 km).

Location

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CarriesSR361 Gabbs Valley
CrossesPetrified Wash
LocationNorth of Luning
RouteState Highway 361
CountyMineral County
StateNevada
Coordinates38.6578, -118.09436
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width174 ft (53 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic370 (2021)
Projected traffic110 by 2038
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed76.4 mi (123 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 SR361 Gabbs Valley over Petrified Wash built?

It was built in 2019, making it 6 years old in 2025.

What condition is SR361 Gabbs Valley over Petrified 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 February 2021.

How much traffic does SR361 Gabbs Valley over Petrified Wash carry?

About 370 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is SR361 Gabbs Valley over Petrified Wash?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 174 ft wide.

Who owns SR361 Gabbs Valley over Petrified Wash?

It is owned by the State Highway Agency.