US Bridges

N Yellowstone HWY over Menan Canal

Good

Jefferson County, Idaho · 0.9 S. 0.5 W. Lorenzo · Structure no. 000000000032661

Built
2010
15 years old
Condition
Good
inspected March 2022
Type
Culvert
Steel
Length
40 ft
1 main span
Daily traffic
3,500
2023 count
Owner
County
County Highway Agency

About this bridge

N Yellowstone HWY over Menan Canal is a steel culvert carrying N Yellowstone HWY over Menan Canal in Jefferson County, Idaho. It was built in 2010, so it is 15 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 3,500 vehicles a day, projected to reach 5,250 by 2042. The structure is 40 ft (12.2 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN Yellowstone HWY
CrossesMenan Canal
Location0.9 S. 0.5 W. Lorenzo
RouteCounty Highway 0
CountyJefferson County
StateIdaho
Coordinates43.71403, -111.88075
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width40 ft (12.3 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2023)
Projected traffic5,250 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Yellowstone HWY over Menan Canal built?

It was built in 2010, making it 15 years old in 2025.

What condition is N Yellowstone HWY over Menan 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 N Yellowstone HWY over Menan Canal carry?

About 3,500 vehicles per day (2023 count).

How long is N Yellowstone HWY over Menan Canal?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 40 ft wide.

Who owns N Yellowstone HWY over Menan Canal?

It is owned by the County Highway Agency.