US Bridges

US 20 Wbl & Ebl over N.Br.Fall River Canal

Good

Fremont County, Idaho · 2.0 E. ST Anthony · Structure no. 000000000012630

Built
1979
46 years old
Condition
Good
inspected March 2022
Type
Frame
Concrete
Length
22 ft
1 main span
Daily traffic
9,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 Wbl & Ebl over N.Br.Fall River Canal is a concrete frame carrying US 20 Wbl & Ebl over N.Br.Fall River 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 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 9,100 vehicles a day, roughly 14% of them trucks, projected to reach 13,650 by 2042. The structure is 22 ft (6.7 m) long and 161 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS 20 Wbl & Ebl
CrossesN.Br.Fall River Canal
Location2.0 E. ST Anthony
RouteU.S. Route 20
CountyFremont County
StateIdaho
Coordinates43.97011, -111.63872
Functional classRural Principal Arterial - Other

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 inspectionMarch 2022
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 rating64 US tons
Inventory rating38 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width161 ft (49.1 m)
Roadway width159 ft (48.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,100 (2023)
Projected traffic13,650 by 2042
Trucks14%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$2.8 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 Wbl & Ebl over N.Br.Fall River Canal built?

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

What condition is US 20 Wbl & Ebl over N.Br.Fall River 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 2022.

How much traffic does US 20 Wbl & Ebl over N.Br.Fall River Canal carry?

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

How long is US 20 Wbl & Ebl over N.Br.Fall River Canal?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 161 ft wide.

Who owns US 20 Wbl & Ebl over N.Br.Fall River Canal?

It is owned by the State Highway Agency.