US Bridges

Indian Creek RD over Indian CREEK(#3)

Fair

Lemhi County, Idaho · 22.0 NW Salmon · Structure no. 000000000034605

Built
1970
55 years old, rebuilt 2006
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
30 ft
1 main span
Daily traffic
15
2023 count
Owner
County
County Highway Agency

About this bridge

Indian Creek RD over Indian CREEK(#3) is a wood or timber stringer/multi-beam or girder carrying Indian Creek RD over Indian CREEK(#3) in Lemhi County, Idaho. It was built in 1970 and reconstructed in 2006, so it is 55 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 15 vehicles a day, projected to reach 23 by 2039. The structure is 30 ft (9.1 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIndian Creek RD
CrossesIndian CREEK(#3)
Location22.0 NW Salmon
RouteCounty Highway 0
CountyLemhi County
StateIdaho
Coordinates45.42989, -114.16464
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2023)
Projected traffic23 by 2039
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$354,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Indian Creek RD over Indian CREEK(#3) built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2006.

What condition is Indian Creek RD over Indian CREEK(#3) 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 July 2024.

How much traffic does Indian Creek RD over Indian CREEK(#3) carry?

About 15 vehicles per day (2023 count).

How long is Indian Creek RD over Indian CREEK(#3)?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 16 ft wide.

Who owns Indian Creek RD over Indian CREEK(#3)?

It is owned by the County Highway Agency.