US Bridges

Ruby Creek RD over Ruby Creek (#2)

Good

Boundary County, Idaho · 3.4 N. 0.6 W. Naples · Structure no. 000000000030326

Built
2021
4 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Ruby Creek RD over Ruby Creek (#2) is a prestressed concrete box beam or girders - multiple carrying Ruby Creek RD over Ruby Creek (#2) in Boundary County, Idaho. It was built in 2021, so it is 4 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 50% of them trucks, projected to reach 45 by 2042. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesRuby Creek RD
CrossesRuby Creek (#2)
Location3.4 N. 0.6 W. Naples
RouteCounty Highway 0
StateIdaho
Coordinates48.61861, -116.40939
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2042
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ruby Creek RD over Ruby Creek (#2) built?

It was built in 2021, making it 4 years old in 2025.

What condition is Ruby Creek RD over Ruby Creek (#2) 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 Ruby Creek RD over Ruby Creek (#2) carry?

About 30 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is Ruby Creek RD over Ruby Creek (#2)?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns Ruby Creek RD over Ruby Creek (#2)?

It is owned by the County Highway Agency.