US Bridges

M-89 over Kalamazoo River

Fair

Allegan County, Michigan · In Plainwell · Structure no. 000000000000094

Built
2003
22 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
235 ft
3 main spans
Daily traffic
10,501
2007 count
Owner
State
State Highway Agency

About this bridge

M-89 over Kalamazoo River is a prestressed concrete box beam or girders - multiple carrying M-89 over Kalamazoo River in Allegan County, Michigan. It was built in 2003, so it is 22 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 10,501 vehicles a day, roughly 8% of them trucks, projected to reach 15,437 by 2018. The structure is 235 ft (71.6 m) long and 59 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesM-89
CrossesKalamazoo River
LocationIn Plainwell
RouteState Highway 89
CountyAllegan County
StateMichigan
Coordinates42.44281, -85.63636
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJune 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.7 US tons
Inventory rating36.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length235 ft (71.6 m)
Longest span80 ft (24.4 m)
Deck width59 ft (17.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,501 (2007)
Projected traffic15,437 by 2018
Trucks8%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 over Kalamazoo River built?

It was built in 2003, making it 22 years old in 2025.

What condition is M-89 over Kalamazoo River 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 June 2023.

How much traffic does M-89 over Kalamazoo River carry?

About 10,501 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is M-89 over Kalamazoo River?

The structure is 235 ft (71.6 m) long with a longest span of 80 ft (24.4 m) and a deck 59 ft wide.

Who owns M-89 over Kalamazoo River?

It is owned by the State Highway Agency.