US Bridges

US 20 Ebl & Wbl over Parks Lewisville Canal

Fair

Jefferson County, Idaho · 1.5 N. Rigby · Structure no. 000000000012455

Built
1975
50 years old
Condition
Fair
inspected November 2021
Type
Frame
Concrete
Length
31 ft
1 main span
Daily traffic
19,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 Ebl & Wbl over Parks Lewisville Canal is a concrete frame carrying US 20 Ebl & Wbl over Parks Lewisville Canal in Jefferson County, Idaho. It was built in 1975, so it is 50 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 19,500 vehicles a day, roughly 14% of them trucks, projected to reach 29,250 by 2042. The structure is 31 ft (9.4 m) long and 150 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 20 Ebl & Wbl
CrossesParks Lewisville Canal
Location1.5 N. Rigby
RouteU.S. Route 20
CountyJefferson County
StateIdaho
Coordinates43.69039, -111.90322
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating40 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width150 ft (45.6 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,500 (2023)
Projected traffic29,250 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 Ebl & Wbl over Parks Lewisville Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is US 20 Ebl & Wbl over Parks Lewisville 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 2021.

How much traffic does US 20 Ebl & Wbl over Parks Lewisville Canal carry?

About 19,500 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US 20 Ebl & Wbl over Parks Lewisville Canal?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 150 ft wide.

Who owns US 20 Ebl & Wbl over Parks Lewisville Canal?

It is owned by the State Highway Agency.