US Bridges

Adaven RD over Sidehill Gap

GoodPosted for load

Nye County, Nevada · East of Adaven · Structure no. B1709

Built
1932
93 years old, rebuilt 1990
Condition
Good
inspected August 2023
Type
Tee Beam
Wood or Timber
Length
25 ft
1 main span
Daily traffic
24
2017 count
Owner
County
County Highway Agency

About this bridge

Adaven RD over Sidehill Gap is a wood or timber tee beam carrying Adaven RD over Sidehill Gap in Nye County, Nevada. It was built in 1932 and reconstructed in 1990, so it is 93 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. Its operating status is: posted for load restriction.

It carries about 24 vehicles a day, projected to reach 50 by 2040. The structure is 25 ft (7.6 m) long and 16 ft wide. If it were closed, the detour would be 77.1 mi (124 km).

CarriesAdaven RD
CrossesSidehill Gap
LocationEast of Adaven
RouteCounty Highway 0
StateNevada
Coordinates38.12339, -115.54397
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.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.7 US tons
Inventory rating56.1 US tons

Structure

Structure typeTee Beam
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span20 ft (6.1 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2017)
Projected traffic50 by 2040
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesOther
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$170,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Adaven RD over Sidehill Gap built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1990.

What condition is Adaven RD over Sidehill Gap 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 Adaven RD over Sidehill Gap carry?

About 24 vehicles per day (2017 count).

How long is Adaven RD over Sidehill Gap?

The structure is 25 ft (7.6 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.

Who owns Adaven RD over Sidehill Gap?

It is owned by the County Highway Agency.