US Bridges

Tungsten RD over Humboldt Rvr

Fair

Pershing County, Nevada · North of Mill City · Structure no. B 572

Built
2001
24 years old
Condition
Fair
inspected July 2021
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
109 ft
1 main span
Daily traffic
50
2017 count
Owner
County
County Highway Agency

About this bridge

Tungsten RD over Humboldt Rvr is a prestressed concrete box beam or girders - single or spread carrying Tungsten RD over Humboldt Rvr in Pershing County, Nevada. It was built in 2001, so it is 24 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 55 by 2040. The structure is 109 ft (33.3 m) long and 25 ft wide. If it were closed, the detour would be 77.1 mi (124 km).

Location

Open in Google Maps
CarriesTungsten RD
CrossesHumboldt Rvr
LocationNorth of Mill City
RouteCounty Highway 0
CountyPershing County
StateNevada
Coordinates40.6967, -118.08781
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating51.4 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length109 ft (33.3 m)
Longest span109 ft (33.2 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2017)
Projected traffic55 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed77.1 mi (124 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Tungsten RD over Humboldt Rvr built?

It was built in 2001, making it 24 years old in 2025.

What condition is Tungsten RD over Humboldt 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 July 2021.

How much traffic does Tungsten RD over Humboldt Rvr carry?

About 50 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Tungsten RD over Humboldt Rvr?

The structure is 109 ft (33.3 m) long with a longest span of 109 ft (33.2 m) and a deck 25 ft wide.

Who owns Tungsten RD over Humboldt Rvr?

It is owned by the County Highway Agency.