US Bridges

Bishop Road over Farmers Coop Canal

Good

Gem County, Idaho · 1.5 S 1.2 W Letha · Structure no. 000000000028091

Built
2010
15 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Bishop Road over Farmers Coop Canal is a prestressed concrete box beam or girders - multiple carrying Bishop Road over Farmers Coop Canal in Gem 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 45 by 2039. The structure is 58 ft (17.7 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBishop Road
CrossesFarmers Coop Canal
Location1.5 S 1.2 W Letha
RouteCounty Highway 0
StateIdaho
Coordinates43.87322, -116.67222
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length58 ft (17.7 m)
Longest span54 ft (16.5 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Bishop Road over Farmers Coop Canal built?

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

What condition is Bishop Road over Farmers Coop Canal 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 March 2023.

How much traffic does Bishop Road over Farmers Coop Canal carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Bishop Road over Farmers Coop Canal?

The structure is 58 ft (17.7 m) long with a longest span of 54 ft (16.5 m) and a deck 38 ft wide.

Who owns Bishop Road over Farmers Coop Canal?

It is owned by the County Highway Agency.