US Bridges

NF Road 105 over Indian Creek

Good

Adams County, Idaho · 2.4 N 2.8 E Cuprum · Structure no. 000000000026603

Built
2010
15 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Concrete
Length
27 ft
1 main span
Daily traffic
80
2023 count
Owner
County
County Highway Agency

About this bridge

NF Road 105 over Indian Creek is a concrete tee beam carrying NF Road 105 over Indian Creek in Adams County, Idaho. It was built in 2010, so it is 15 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, roughly 14% of them trucks, projected to reach 120 by 2042. The structure is 27 ft (8.2 m) long and 17 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNF Road 105
CrossesIndian Creek
Location2.4 N 2.8 E Cuprum
RouteCounty Highway 0
StateIdaho
Coordinates45.12275, -116.63011
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2023)
Projected traffic120 by 2042
Trucks14%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NF Road 105 over Indian Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is NF Road 105 over Indian Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does NF Road 105 over Indian Creek carry?

About 80 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is NF Road 105 over Indian Creek?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 17 ft wide.

Who owns NF Road 105 over Indian Creek?

It is owned by the County Highway Agency.