US Bridges

Gay Laclabelle RD over Little Gratiot River

Fair

Keweenaw County, Michigan · 1 MI W of Laclabelle · Structure no. 000000000005267

Built
1959
66 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
126
1998 count
Owner
County
County Highway Agency

About this bridge

Gay Laclabelle RD over Little Gratiot River is a steel culvert carrying Gay Laclabelle RD over Little Gratiot River in Keweenaw County, Michigan. It was built in 1959, so it is 66 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 126 vehicles a day, projected to reach 144 by 2014. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 34.8 mi (56 km).

Location

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CarriesGay Laclabelle RD
CrossesLittle Gratiot River
Location1 MI W of Laclabelle
RouteCounty Highway 4204
CountyKeweenaw County
StateMichigan
Coordinates47.37571, -88.03628
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating67.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
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 traffic126 (1998)
Projected traffic144 by 2014
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
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 Gay Laclabelle RD over Little Gratiot River built?

It was built in 1959, making it 66 years old in 2025.

What condition is Gay Laclabelle RD over Little Gratiot 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 Gay Laclabelle RD over Little Gratiot River carry?

About 126 vehicles per day (1998 count).

How long is Gay Laclabelle RD over Little Gratiot River?

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

Who owns Gay Laclabelle RD over Little Gratiot River?

It is owned by the County Highway Agency.