US Bridges

E 500 N over Enterprise Canal

Good

Fremont County, Idaho · 2.9 S 0.2 W Chester · Structure no. 000000000032146

Built
2011
14 years old
Condition
Good
inspected October 2023
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
70
2023 count
Owner
County
County Highway Agency

About this bridge

E 500 N over Enterprise Canal is a concrete frame carrying E 500 N over Enterprise Canal in Fremont County, Idaho. It was built in 2011, so it is 14 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 105 by 2039. The structure is 23 ft (7 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesE 500 N
CrossesEnterprise Canal
Location2.9 S 0.2 W Chester
RouteCounty Highway 0
CountyFremont County
StateIdaho
Coordinates43.95544, -111.5795
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.9 US tons
Inventory rating86 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 width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was E 500 N over Enterprise Canal built?

It was built in 2011, making it 14 years old in 2025.

What condition is E 500 N over Enterprise 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 October 2023.

How much traffic does E 500 N over Enterprise Canal carry?

About 70 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is E 500 N over Enterprise Canal?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 39 ft wide.

Who owns E 500 N over Enterprise Canal?

It is owned by the County Highway Agency.