US Bridges

6 MI Road over Walska River

Good

Chippewa County, Michigan · 5 MI SW of Sault ST Mari · Structure no. 000000000001632

Built
2022
3 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
3,945
2021 count
Owner
County
County Highway Agency

About this bridge

6 MI Road over Walska River is a concrete culvert carrying 6 MI Road over Walska River in Chippewa County, Michigan. It was built in 2022, so it is 3 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,945 vehicles a day, roughly 4% of them trucks, projected to reach 5,862 by 2041. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 8.7 mi (14 km).

Carries6 MI Road
CrossesWalska River
Location5 MI SW of Sault ST Mari
RouteCounty Highway 1758
Coordinates46.41887, -84.4675
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating95.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,945 (2021)
Projected traffic5,862 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 6 MI Road over Walska River built?

It was built in 2022, making it 3 years old in 2025.

What condition is 6 MI Road over Walska River 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 June 2023.

How much traffic does 6 MI Road over Walska River carry?

About 3,945 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is 6 MI Road over Walska River?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns 6 MI Road over Walska River?

It is owned by the County Highway Agency.