US Bridges

SH 48 over Farmers Friend Canal

Good

Jefferson County, Idaho · 0.5 W. Ririe · Structure no. 000000000014510

Built
1983
42 years old
Condition
Good
inspected April 2021
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
2,000
2023 count
Owner
State
State Highway Agency

About this bridge

SH 48 over Farmers Friend Canal is a concrete frame carrying SH 48 over Farmers Friend Canal in Jefferson County, Idaho. It was built in 1983, so it is 42 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 2,000 vehicles a day, roughly 3% of them trucks, projected to reach 3,000 by 2042. The structure is 23 ft (7 m) long and 64 ft wide.

Location

Open in Google Maps
CarriesSH 48
CrossesFarmers Friend Canal
Location0.5 W. Ririe
RouteState Highway 48
CountyJefferson County
StateIdaho
Coordinates43.62708, -111.78358
Functional classRural Major Collector

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 inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width64 ft (19.5 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2023)
Projected traffic3,000 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 48 over Farmers Friend Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is SH 48 over Farmers Friend 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 April 2021.

How much traffic does SH 48 over Farmers Friend Canal carry?

About 2,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is SH 48 over Farmers Friend Canal?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 64 ft wide.

Who owns SH 48 over Farmers Friend Canal?

It is owned by the State Highway Agency.