US Bridges

Road 615 over Canyon Creek Tributary

Fair

Shoshone County, Idaho · No Data Entered · Structure no. 010401000003074

Built
1954
71 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
29 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road 615 over Canyon Creek Tributary is a wood or timber stringer/multi-beam or girder carrying Road 615 over Canyon Creek Tributary in Shoshone County, Idaho. It was built in 1954, so it is 71 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 29 ft (8.7 m) long and 13 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesRoad 615
CrossesCanyon Creek Tributary
LocationNo Data Entered
RouteFederal Lands Road 615
CountyShoshone County
StateIdaho
Coordinates47.52837, -115.71957
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 15
Structure length29 ft (8.7 m)
Longest span27 ft (8.2 m)
Deck width13 ft (4 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road 615 over Canyon Creek Tributary built?

It was built in 1954, making it 71 years old in 2025.

What condition is Road 615 over Canyon Creek Tributary 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 October 2023.

How much traffic does Road 615 over Canyon Creek Tributary carry?

About 50 vehicles per day (latest count).

How long is Road 615 over Canyon Creek Tributary?

The structure is 29 ft (8.7 m) long with a longest span of 27 ft (8.2 m) and a deck 13 ft wide.

Who owns Road 615 over Canyon Creek Tributary?

It is owned by the U.S. Forest Service.