US Bridges

M-100 over I-96

Fair

Clinton County, Michigan · At M-100 · Structure no. 000000000001791

Built
2011
14 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
210 ft
2 main spans
Daily traffic
6,725
2010 count
Owner
State
State Highway Agency

About this bridge

M-100 over I-96 is a prestressed concrete box beam or girders - single or spread carrying M-100 over I-96 in Clinton 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 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 6,725 vehicles a day, roughly 7% of them trucks, projected to reach 7,800 by 2030. The structure is 210 ft (64.1 m) long and 59 ft wide.

Location

Open in Google Maps
CarriesM-100
CrossesI-96
LocationAt M-100
RouteState Highway 100
CountyClinton County
StateMichigan
Coordinates42.80032, -84.73941
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length210 ft (64.1 m)
Longest span104 ft (31.6 m)
Deck width59 ft (18.1 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,725 (2010)
Projected traffic7,800 by 2030
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was M-100 over I-96 built?

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

What condition is M-100 over I-96 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 April 2024.

How much traffic does M-100 over I-96 carry?

About 6,725 vehicles per day (2010 count), of which roughly 7% are trucks.

How long is M-100 over I-96?

The structure is 210 ft (64.1 m) long with a longest span of 104 ft (31.6 m) and a deck 59 ft wide.

Who owns M-100 over I-96?

It is owned by the State Highway Agency.