US Bridges

SR 781 Palisade Br over Humboldt Rvr

Good

Eureka County, Nevada · Palisade · Structure no. B1489

Built
1976
49 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
205 ft
2 main spans
Daily traffic
88
2017 count
Owner
State
State Highway Agency

About this bridge

SR 781 Palisade Br over Humboldt Rvr is a steel continuous stringer/multi-beam or girder carrying SR 781 Palisade Br over Humboldt Rvr in Eureka County, Nevada. It was built in 1976, so it is 49 years old, older 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 88 vehicles a day, roughly 23% of them trucks, projected to reach 97 by 2040. The structure is 205 ft (62.5 m) long and 35 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

CarriesSR 781 Palisade Br
CrossesHumboldt Rvr
LocationPalisade
StateNevada
Coordinates40.60908, -116.20007
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.4 US tons
Inventory rating47.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length205 ft (62.5 m)
Longest span100 ft (30.5 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2017)
Projected traffic97 by 2040
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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 SR 781 Palisade Br over Humboldt Rvr built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR 781 Palisade Br over Humboldt Rvr 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 August 2023.

How much traffic does SR 781 Palisade Br over Humboldt Rvr carry?

About 88 vehicles per day (2017 count), of which roughly 23% are trucks.

How long is SR 781 Palisade Br over Humboldt Rvr?

The structure is 205 ft (62.5 m) long with a longest span of 100 ft (30.5 m) and a deck 35 ft wide.

Who owns SR 781 Palisade Br over Humboldt Rvr?

It is owned by the State Highway Agency.