US Bridges

Lac LA Belle RD over Montreal River

Fair

Keweenaw County, Michigan · 0.4 MI E of US-41 · Structure no. 000000000014626

Built
1942
83 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
558
2023 count
Owner
County
County Highway Agency

About this bridge

Lac LA Belle RD over Montreal River is a steel culvert carrying Lac LA Belle RD over Montreal River in Keweenaw County, Michigan. It was built in 1942, so it is 83 years old, older than the Michigan average of 48.3 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 558 vehicles a day, projected to reach 681 by 2043. The structure is 22 ft (6.7 m) long.

Location

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CarriesLac LA Belle RD
CrossesMontreal River
Location0.4 MI E of US-41
RouteCounty Highway 0
CountyKeweenaw County
StateMichigan
Coordinates47.42136, -88.0761
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic558 (2023)
Projected traffic681 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lac LA Belle RD over Montreal River built?

It was built in 1942, making it 83 years old in 2025.

What condition is Lac LA Belle RD over Montreal River 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 October 2024.

How much traffic does Lac LA Belle RD over Montreal River carry?

About 558 vehicles per day (2023 count).

How long is Lac LA Belle RD over Montreal River?

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

Who owns Lac LA Belle RD over Montreal River?

It is owned by the County Highway Agency.