US Bridges

US 20 Ebl & Wbl over Farmers Friend Canal

Fair

Fremont County, Idaho · 1.5 E. ST Anthony · Structure no. 000000000012625

Built
1979
46 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
9,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 Ebl & Wbl over Farmers Friend Canal is a prestressed concrete box beam or girders - multiple carrying US 20 Ebl & Wbl over Farmers Friend Canal in Fremont County, Idaho. It was built in 1979, so it is 46 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 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 9,100 vehicles a day, roughly 14% of them trucks, projected to reach 13,650 by 2042. The structure is 34 ft (10.4 m) long and 153 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 20 Ebl & Wbl
CrossesFarmers Friend Canal
Location1.5 E. ST Anthony
RouteU.S. Route 20
StateIdaho
Coordinates43.96803, -111.64806
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width153 ft (46.6 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,100 (2023)
Projected traffic13,650 by 2042
Trucks14%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$642,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 Ebl & Wbl over Farmers Friend Canal built?

It was built in 1979, making it 46 years old in 2025.

What condition is US 20 Ebl & Wbl over Farmers Friend Canal 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 November 2023.

How much traffic does US 20 Ebl & Wbl over Farmers Friend Canal carry?

About 9,100 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US 20 Ebl & Wbl over Farmers Friend Canal?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 153 ft wide.

Who owns US 20 Ebl & Wbl over Farmers Friend Canal?

It is owned by the State Highway Agency.