US Bridges

M-25 over Forester Creek

Fair

Sanilac County, Michigan · 4.9 MI N of M-46 · Structure no. 000000000009491

Built
1934
91 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
35 ft
1 main span
Daily traffic
3,500
2023 count
Owner
State
State Highway Agency

About this bridge

M-25 over Forester Creek is a concrete tee beam carrying M-25 over Forester Creek in Sanilac County, Michigan. It was built in 1934, so it is 91 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 3,500 vehicles a day, roughly 3% of them trucks, projected to reach 4,050 by 2043. The structure is 35 ft (10.7 m) long and 58 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-25
CrossesForester Creek
Location4.9 MI N of M-46
RouteState Highway 25
CountySanilac County
StateMichigan
Coordinates43.49842, -82.56835
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating70.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length35 ft (10.7 m)
Longest span35 ft (10.6 m)
Deck width58 ft (17.8 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2023)
Projected traffic4,050 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Forester Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is M-25 over Forester 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 Forester Creek carry?

About 3,500 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is M-25 over Forester Creek?

The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.6 m) and a deck 58 ft wide.

Who owns M-25 over Forester Creek?

It is owned by the State Highway Agency.