US Bridges

M-25 over Indian Creek

Fair

Sanilac County, Michigan · 11.0 MI N of M-46 · Structure no. 000000000009495

Built
1949
76 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
135 ft
3 main spans
Daily traffic
1,173
2007 count
Owner
State
State Highway Agency

About this bridge

M-25 over Indian Creek is a steel stringer/multi-beam or girder carrying M-25 over Indian Creek in Sanilac County, Michigan. It was built in 1949, so it is 76 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 1,173 vehicles a day, roughly 9% of them trucks, projected to reach 1,750 by 2026. The structure is 135 ft (41.1 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-25
CrossesIndian Creek
Location11.0 MI N of M-46
RouteState Highway 25
CountySanilac County
StateMichigan
Coordinates43.5848, -82.5962
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span45 ft (13.7 m)
Deck width44 ft (13.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,173 (2007)
Projected traffic1,750 by 2026
Trucks9%
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$60,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M-25 over Indian Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is M-25 over Indian 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 October 2023.

How much traffic does M-25 over Indian Creek carry?

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

How long is M-25 over Indian Creek?

The structure is 135 ft (41.1 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.

Who owns M-25 over Indian Creek?

It is owned by the State Highway Agency.