US Bridges

US 95 over Humboldt Rvr

Fair

Humboldt County, Nevada · Winnemucca · Structure no. B 223

Built
1986
39 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
275 ft
3 main spans
Daily traffic
6,550
2021 count
Owner
State
State Highway Agency

About this bridge

US 95 over Humboldt Rvr is a steel continuous stringer/multi-beam or girder carrying US 95 over Humboldt Rvr in Humboldt County, Nevada. It was built in 1986, so it is 39 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 6,550 vehicles a day, roughly 13% of them trucks, projected to reach 8,600 by 2040. The structure is 275 ft (83.8 m) long and 56 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 95
CrossesHumboldt Rvr
LocationWinnemucca
RouteU.S. Route 95
StateNevada
Coordinates40.97547, -117.73951
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 rating71.5 US tons
Inventory rating42.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length275 ft (83.8 m)
Longest span107 ft (32.6 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,550 (2021)
Projected traffic8,600 by 2040
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 US 95 over Humboldt Rvr built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 95 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 2023.

How much traffic does US 95 over Humboldt Rvr carry?

About 6,550 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is US 95 over Humboldt Rvr?

The structure is 275 ft (83.8 m) long with a longest span of 107 ft (32.6 m) and a deck 56 ft wide.

Who owns US 95 over Humboldt Rvr?

It is owned by the State Highway Agency.