US Bridges

M-25 over (no Name)creek

Fair

Sanilac County, Michigan · 10.3 MI N of M-46 · Structure no. 000000000009494

Built
1948
77 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,173
2007 count
Owner
State
State Highway Agency

About this bridge

M-25 over (no Name)creek is a concrete culvert carrying M-25 over (no Name)creek in Sanilac County, Michigan. It was built in 1948, so it is 77 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 1,173 vehicles a day, roughly 9% of them trucks, projected to reach 2,320 by 2027. The structure is 23 ft (7 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesM-25
Crosses(no Name)creek
Location10.3 MI N of M-46
RouteState Highway 25
CountySanilac County
StateMichigan
Coordinates43.57434, -82.59372
Functional classRural Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,173 (2007)
Projected traffic2,320 by 2027
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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 (no Name)creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is M-25 over (no Name)creek 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 May 2024.

How much traffic does M-25 over (no Name)creek carry?

About 1,173 vehicles per day (2007 count), of which roughly 9% are trucks.

How long is M-25 over (no Name)creek?

The structure is 23 ft (7 m) long with a longest span of 12 ft (3.6 m).

Who owns M-25 over (no Name)creek?

It is owned by the State Highway Agency.