US Bridges

M-3 NB over Clinton River

Good

Macomb County, Michigan · In Mt Clemens · Structure no. 000000000006070

Built
2011
14 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
270 ft
3 main spans
Daily traffic
18,500
2008 count
Owner
State
State Highway Agency

About this bridge

M-3 NB over Clinton River is a prestressed concrete box beam or girders - single or spread carrying M-3 NB 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 18,500 vehicles a day, roughly 2% of them trucks, projected to reach 21,750 by 2031. The structure is 270 ft (82.3 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesM-3 NB
CrossesClinton River
LocationIn Mt Clemens
RouteState Highway 3
CountyMacomb County
StateMichigan
Coordinates42.58443, -82.88247
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating102.2 US tons
Inventory rating11.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length270 ft (82.3 m)
Longest span98 ft (29.9 m)
Deck width56 ft (17.2 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,500 (2008)
Projected traffic21,750 by 2031
Trucks2%
Lanes on structure3
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 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-3 NB over Clinton River built?

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

What condition is M-3 NB 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 NB over Clinton River carry?

About 18,500 vehicles per day (2008 count), of which roughly 2% are trucks.

How long is M-3 NB over Clinton River?

The structure is 270 ft (82.3 m) long with a longest span of 98 ft (29.9 m) and a deck 56 ft wide.

Who owns M-3 NB over Clinton River?

It is owned by the State Highway Agency.