US Bridges

M-3 SB over Clinton River

Good

Macomb County, Michigan · In Mt Clemens · Structure no. 000000000006069

Built
2011
14 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
250 ft
3 main spans
Daily traffic
22,300
2008 count
Owner
State
State Highway Agency

About this bridge

M-3 SB over Clinton River is a prestressed concrete box beam or girders - single or spread carrying M-3 SB over Clinton River in Macomb County, Michigan. It was built in 2011, so it is 14 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 22,300 vehicles a day, roughly 2% of them trucks, projected to reach 26,250 by 2031. The structure is 250 ft (76.2 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-3 SB
CrossesClinton River
LocationIn Mt Clemens
RouteState Highway 3
CountyMacomb County
StateMichigan
Coordinates42.58522, -82.8835
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating71.1 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length250 ft (76.2 m)
Longest span88 ft (26.9 m)
Deck width73 ft (22.4 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,300 (2008)
Projected traffic26,250 by 2031
Trucks2%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-3 SB over Clinton River built?

It was built in 2011, making it 14 years old in 2025.

What condition is M-3 SB over Clinton River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does M-3 SB over Clinton River carry?

About 22,300 vehicles per day (2008 count), of which roughly 2% are trucks.

How long is M-3 SB over Clinton River?

The structure is 250 ft (76.2 m) long with a longest span of 88 ft (26.9 m) and a deck 73 ft wide.

Who owns M-3 SB over Clinton River?

It is owned by the State Highway Agency.