US Bridges

M-89 EB over US-131

Fair

Allegan County, Michigan · At W Lts of Plainwell · Structure no. 000000000000149

Built
1960
65 years old, rebuilt 2012
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
204 ft
4 main spans
Daily traffic
13,900
2011 count
Owner
State
State Highway Agency

About this bridge

M-89 EB over US-131 is a steel stringer/multi-beam or girder carrying M-89 EB over US-131 in Allegan County, Michigan. It was built in 1960 and reconstructed in 2012, so it is 65 years old, older 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 5 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 13,900 vehicles a day, roughly 5% of them trucks, projected to reach 16,100 by 2032. The structure is 204 ft (62.2 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-89 EB
CrossesUS-131
LocationAt W Lts of Plainwell
RouteState Highway 89
CountyAllegan County
StateMichigan
Coordinates42.44924, -85.65609
Functional classRural Principal Arterial - Other

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length204 ft (62.2 m)
Longest span67 ft (20.5 m)
Deck width53 ft (16.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,900 (2011)
Projected traffic16,100 by 2032
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was M-89 EB over US-131 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2012.

What condition is M-89 EB over US-131 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 EB over US-131 carry?

About 13,900 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is M-89 EB over US-131?

The structure is 204 ft (62.2 m) long with a longest span of 67 ft (20.5 m) and a deck 53 ft wide.

Who owns M-89 EB over US-131?

It is owned by the State Highway Agency.