US Bridges

M-125 over Otter Creek

Fair

Monroe County, Michigan · 4.7 MI SW of M-50 · Structure no. 000000000007138

Built
1964
61 years old, rebuilt 2006
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
2 main spans
Daily traffic
8,305
2007 count
Owner
State
State Highway Agency

About this bridge

M-125 over Otter Creek is a prestressed concrete stringer/multi-beam or girder carrying M-125 over Otter Creek in Monroe County, Michigan. It was built in 1964 and reconstructed in 2006, so it is 61 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 8,305 vehicles a day, roughly 3% of them trucks, projected to reach 9,636 by 2018. The structure is 80 ft (24.5 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesM-125
CrossesOtter Creek
Location4.7 MI SW of M-50
RouteState Highway 125
CountyMonroe County
StateMichigan
Coordinates41.86694, -83.45334
Functional classUrban 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length80 ft (24.5 m)
Longest span40 ft (12.3 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,305 (2007)
Projected traffic9,636 by 2018
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-125 over Otter Creek built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2006.

What condition is M-125 over Otter 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 August 2023.

How much traffic does M-125 over Otter Creek carry?

About 8,305 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is M-125 over Otter Creek?

The structure is 80 ft (24.5 m) long with a longest span of 40 ft (12.3 m) and a deck 56 ft wide.

Who owns M-125 over Otter Creek?

It is owned by the State Highway Agency.