US Bridges

Kube Road over Stock Creek

FairPosted for load

Idaho County, Idaho · 8.5 N. 4.5 W. Grangeville · Structure no. 000000000029160

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
80
2023 count
Owner
Local
Other Local Agency

About this bridge

Kube Road over Stock Creek is a steel stringer/multi-beam or girder carrying Kube Road over Stock Creek in Idaho County, Idaho. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 80 vehicles a day, roughly 5% of them trucks, projected to reach 120 by 2039. The structure is 26 ft (7.9 m) long and 20 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesKube Road
CrossesStock Creek
Location8.5 N. 4.5 W. Grangeville
RouteCounty Highway 0
CountyIdaho County
StateIdaho
Coordinates46.05114, -116.21214
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating11 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2023)
Projected traffic120 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$326,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kube Road over Stock Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Kube Road over Stock Creek 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 September 2024.

How much traffic does Kube Road over Stock Creek carry?

About 80 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Kube Road over Stock Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 20 ft wide.

Who owns Kube Road over Stock Creek?

It is owned by the Other Local Agency.