US Bridges

Mills over Kalamazoo

Good

Kalamazoo County, Michigan · In Kalamazoo · Structure no. 000000000004681

Built
1993
32 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
200 ft
3 main spans
Daily traffic
11,538
1998 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mills over Kalamazoo is a prestressed concrete box beam or girders - multiple carrying Mills over Kalamazoo in Kalamazoo County, Michigan. It was built in 1993, so it is 32 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,538 vehicles a day, roughly 8% of them trucks, projected to reach 14,999 by 2018. The structure is 200 ft (61 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMills
CrossesKalamazoo
LocationIn Kalamazoo
RouteCity Street 2005
Coordinates42.29294, -85.56646
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating105.7 US tons
Inventory rating63.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length200 ft (61 m)
Longest span67 ft (20.4 m)
Deck width64 ft (19.6 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,538 (1998)
Projected traffic14,999 by 2018
Trucks8%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Mills over Kalamazoo built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mills over Kalamazoo in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Mills over Kalamazoo carry?

About 11,538 vehicles per day (1998 count), of which roughly 8% are trucks.

How long is Mills over Kalamazoo?

The structure is 200 ft (61 m) long with a longest span of 67 ft (20.4 m) and a deck 64 ft wide.

Who owns Mills over Kalamazoo?

It is owned by the City or Municipal Highway Agency.