US Bridges

M-25 over Wisner Drain

Fair

Tuscola County, Michigan · 6.5 MI NE of Bay CO Line · Structure no. 000000000010441

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
5,571
2007 count
Owner
State
State Highway Agency

About this bridge

M-25 over Wisner Drain is a prestressed concrete stringer/multi-beam or girder carrying M-25 over Wisner Drain in Tuscola County, Michigan. It was built in 1985, so it is 40 years old, younger 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 5,571 vehicles a day, roughly 6% of them trucks, projected to reach 7,535 by 2018. The structure is 28 ft (8.5 m) long and 63 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesM-25
CrossesWisner Drain
Location6.5 MI NE of Bay CO Line
RouteState Highway 25
CountyTuscola County
StateMichigan
Coordinates43.61639, -83.58405
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,571 (2007)
Projected traffic7,535 by 2018
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-25 over Wisner Drain built?

It was built in 1985, making it 40 years old in 2025.

What condition is M-25 over Wisner Drain 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 September 2023.

How much traffic does M-25 over Wisner Drain carry?

About 5,571 vehicles per day (2007 count), of which roughly 6% are trucks.

How long is M-25 over Wisner Drain?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 63 ft wide.

Who owns M-25 over Wisner Drain?

It is owned by the State Highway Agency.