US Bridges

M-6 WB over Kalamazoo Ave

Fair

Kent County, Michigan · Gaines Twp Sec 4-5 · Structure no. 000000000013040

Built
2001
24 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
175 ft
1 main span
Daily traffic
20,090
2007 count
Owner
State
State Highway Agency

About this bridge

M-6 WB over Kalamazoo Ave is a steel stringer/multi-beam or girder carrying M-6 WB over Kalamazoo Ave in Kent County, Michigan. It was built in 2001, so it is 24 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 20,090 vehicles a day, roughly 8% of them trucks, projected to reach 39,500 by 2015. The structure is 175 ft (53.4 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-6 WB
CrossesKalamazoo Ave
LocationGaines Twp Sec 4-5
RouteState Highway 6
CountyKent County
StateMichigan
Coordinates42.84727, -85.62475
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
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 rating78.6 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length175 ft (53.4 m)
Longest span175 ft (53.4 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,090 (2007)
Projected traffic39,500 by 2015
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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-6 WB over Kalamazoo Ave built?

It was built in 2001, making it 24 years old in 2025.

What condition is M-6 WB over Kalamazoo Ave 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-6 WB over Kalamazoo Ave carry?

About 20,090 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is M-6 WB over Kalamazoo Ave?

The structure is 175 ft (53.4 m) long with a longest span of 175 ft (53.4 m) and a deck 47 ft wide.

Who owns M-6 WB over Kalamazoo Ave?

It is owned by the State Highway Agency.