US Bridges

M-43 (e Mich Ave) over Kalamazoo River

Fair

Kalamazoo County, Michigan · In Kalamazoo · Structure no. 000000000004614

Built
1995
30 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
255 ft
3 main spans
Daily traffic
18,825
2018 count
Owner
State
State Highway Agency

About this bridge

M-43 (e Mich Ave) over Kalamazoo River is a prestressed concrete box beam or girders - multiple carrying M-43 (e Mich Ave) over Kalamazoo River in Kalamazoo County, Michigan. It was built in 1995, so it is 30 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 18,825 vehicles a day, roughly 3% of them trucks, projected to reach 20,050 by 2038. The structure is 255 ft (77.7 m) long and 75 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-43 (e Mich Ave)
CrossesKalamazoo River
LocationIn Kalamazoo
RouteState Highway 43
CountyKalamazoo County
StateMichigan
Coordinates42.29482, -85.57147
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating31.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length255 ft (77.7 m)
Longest span87 ft (26.5 m)
Deck width75 ft (22.8 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,825 (2018)
Projected traffic20,050 by 2038
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-43 (e Mich Ave) over Kalamazoo River built?

It was built in 1995, making it 30 years old in 2025.

What condition is M-43 (e Mich Ave) 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 July 2024.

How much traffic does M-43 (e Mich Ave) over Kalamazoo River carry?

About 18,825 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is M-43 (e Mich Ave) over Kalamazoo River?

The structure is 255 ft (77.7 m) long with a longest span of 87 ft (26.5 m) and a deck 75 ft wide.

Who owns M-43 (e Mich Ave) over Kalamazoo River?

It is owned by the State Highway Agency.