US Bridges

Ruby Creek RD over Deep Crk;ruby CREEK(#1)

Fair

Boundary County, Idaho · 3.4 N. 0.3 W. Naples · Structure no. 000000000030270

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
57 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Ruby Creek RD over Deep Crk;ruby CREEK(#1) is a concrete tee beam carrying Ruby Creek RD over Deep Crk;ruby CREEK(#1) in Boundary County, Idaho. It was built in 1975, so it is 50 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 30 vehicles a day, roughly 50% of them trucks, projected to reach 45 by 2042. The structure is 57 ft (17.4 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesRuby Creek RD
CrossesDeep Crk;ruby CREEK(#1)
Location3.4 N. 0.3 W. Naples
RouteCounty Highway 0
CountyBoundary County
StateIdaho
Coordinates48.61935, -116.4006
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span55 ft (16.8 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$554,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ruby Creek RD over Deep Crk;ruby CREEK(#1) built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ruby Creek RD over Deep Crk;ruby CREEK(#1) 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 June 2024.

How much traffic does Ruby Creek RD over Deep Crk;ruby CREEK(#1) carry?

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

How long is Ruby Creek RD over Deep Crk;ruby CREEK(#1)?

The structure is 57 ft (17.4 m) long with a longest span of 55 ft (16.8 m) and a deck 20 ft wide.

Who owns Ruby Creek RD over Deep Crk;ruby CREEK(#1)?

It is owned by the County Highway Agency.