US Bridges

M-89 (allegan St) over Kalamazoo Riv Mill Race

Fair

Allegan County, Michigan · In Plainwell · Structure no. 000000000000092

Built
2012
13 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
21,300
2012 count
Owner
State
State Highway Agency

About this bridge

M-89 (allegan St) over Kalamazoo Riv Mill Race is a prestressed concrete box beam or girders - multiple carrying M-89 (allegan St) over Kalamazoo Riv Mill Race in Allegan County, Michigan. It was built in 2012, so it is 13 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 21,300 vehicles a day, roughly 8% of them trucks, projected to reach 24,750 by 2032. The structure is 54 ft (16.5 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-89 (allegan St)
CrossesKalamazoo Riv Mill Race
LocationIn Plainwell
RouteState Highway 89
CountyAllegan County
StateMichigan
Coordinates42.44331, -85.64299
Functional classUrban Other Principal 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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating61.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length54 ft (16.5 m)
Longest span52 ft (16 m)
Deck width55 ft (16.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,300 (2012)
Projected traffic24,750 by 2032
Trucks8%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-89 (allegan St) over Kalamazoo Riv Mill Race built?

It was built in 2012, making it 13 years old in 2025.

What condition is M-89 (allegan St) over Kalamazoo Riv Mill Race 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 May 2023.

How much traffic does M-89 (allegan St) over Kalamazoo Riv Mill Race carry?

About 21,300 vehicles per day (2012 count), of which roughly 8% are trucks.

How long is M-89 (allegan St) over Kalamazoo Riv Mill Race?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (16 m) and a deck 55 ft wide.

Who owns M-89 (allegan St) over Kalamazoo Riv Mill Race?

It is owned by the State Highway Agency.