US Bridges

Fdr over Big Smoky Creek

Fair

Camas County, Idaho · Big Smoky JCT · Structure no. 041405000001081

Built
1982
43 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
116 ft
2 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fdr over Big Smoky Creek is a prestressed concrete slab carrying Fdr over Big Smoky Creek in Camas County, Idaho. It was built in 1982, so it is 43 years old, younger 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 6 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 116 ft (35.4 m) long and 20 ft wide.

CarriesFdr
CrossesBig Smoky Creek
LocationBig Smoky JCT
RouteCounty Highway 70227
StateIdaho
Coordinates43.60732, -114.87763
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span56 ft (17.2 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.3 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 closed—
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 Fdr over Big Smoky Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Fdr over Big Smoky 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 2023.

How much traffic does Fdr over Big Smoky Creek carry?

About 50 vehicles per day (latest count).

How long is Fdr over Big Smoky Creek?

The structure is 116 ft (35.4 m) long with a longest span of 56 ft (17.2 m) and a deck 20 ft wide.

Who owns Fdr over Big Smoky Creek?

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