US Bridges

M-95 over Black River

Fair

Marquette County, Michigan · 3.2 MI S of US-41 · Structure no. 000000000006474

Built
1942
83 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
38 ft
1 main span
Daily traffic
2,378
2007 count
Owner
State
State Highway Agency

About this bridge

M-95 over Black River is a concrete tee beam carrying M-95 over Black River in Marquette 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 5 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 2,378 vehicles a day, roughly 17% of them trucks, projected to reach 2,771 by 2018. The structure is 38 ft (11.7 m) long and 48 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-95
CrossesBlack River
Location3.2 MI S of US-41
RouteState Highway 95
CountyMarquette County
StateMichigan
Coordinates46.45133, -87.9507
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.4 US tons
Inventory rating39.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length38 ft (11.7 m)
Longest span37 ft (11.3 m)
Deck width48 ft (14.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,378 (2007)
Projected traffic2,771 by 2018
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Black River built?

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

What condition is M-95 over Black 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 2023.

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

About 2,378 vehicles per day (2007 count), of which roughly 17% are trucks.

How long is M-95 over Black River?

The structure is 38 ft (11.7 m) long with a longest span of 37 ft (11.3 m) and a deck 48 ft wide.

Who owns M-95 over Black River?

It is owned by the State Highway Agency.