US Bridges

N 5050 E over Great Feeder Canal Head

Good

Jefferson County, Idaho · 0.7 S. 0.4 W. Heise · Structure no. 000000000032353

Built
2016
9 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
106 ft
6 main spans
Daily traffic
40
2023 count
Owner
Private
Private (other than railroad)

About this bridge

N 5050 E over Great Feeder Canal Head is a concrete slab carrying N 5050 E over Great Feeder Canal Head in Jefferson County, Idaho. It was built in 2016, so it is 9 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 40 vehicles a day, projected to reach 60 by 2039. The structure is 106 ft (32.3 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesN 5050 E
CrossesGreat Feeder Canal Head
Location0.7 S. 0.4 W. Heise
RouteCounty Highway 0
CountyJefferson County
StateIdaho
Coordinates43.63103, -111.69269
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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length106 ft (32.3 m)
Longest span17 ft (5.2 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic60 by 2039
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerPrivate (other than railroad)
Maintained byCounty 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 N 5050 E over Great Feeder Canal Head built?

It was built in 2016, making it 9 years old in 2025.

What condition is N 5050 E over Great Feeder Canal Head 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 2024.

How much traffic does N 5050 E over Great Feeder Canal Head carry?

About 40 vehicles per day (2023 count).

How long is N 5050 E over Great Feeder Canal Head?

The structure is 106 ft (32.3 m) long with a longest span of 17 ft (5.2 m) and a deck 16 ft wide.

Who owns N 5050 E over Great Feeder Canal Head?

It is owned by the Private (other than railroad) and maintained by the County Highway Agency.