US Bridges

M-95 over Michigamme River

Fair

Marquette County, Michigan · 6.9 MI S of US-41 · Structure no. 000000000006473

Built
1958
67 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
259 ft
4 main spans
Daily traffic
3,375
2019 count
Owner
State
State Highway Agency

About this bridge

M-95 over Michigamme River is a steel stringer/multi-beam or girder carrying M-95 over Michigamme River in Marquette County, Michigan. It was built in 1958, so it is 67 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 3,375 vehicles a day, roughly 11% of them trucks, projected to reach 3,725 by 2039. The structure is 259 ft (78.9 m) long and 37 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesM-95
CrossesMichigamme River
Location6.9 MI S of US-41
RouteState Highway 95
CountyMarquette County
StateMichigan
Coordinates46.41335, -87.99353
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.3 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length259 ft (78.9 m)
Longest span64 ft (19.5 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,375 (2019)
Projected traffic3,725 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 M-95 over Michigamme River built?

It was built in 1958, making it 67 years old in 2025.

What condition is M-95 over Michigamme 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 June 2024.

How much traffic does M-95 over Michigamme River carry?

About 3,375 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is M-95 over Michigamme River?

The structure is 259 ft (78.9 m) long with a longest span of 64 ft (19.5 m) and a deck 37 ft wide.

Who owns M-95 over Michigamme River?

It is owned by the State Highway Agency.