US Bridges

M-99 (superior St) over Kalamazoo River

Fair

Calhoun County, Michigan · In Albion · Structure no. 000000000001288

Built
1908
117 years old, rebuilt 1993
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
102 ft
2 main spans
Daily traffic
7,449
2007 count
Owner
State
State Highway Agency

About this bridge

M-99 (superior St) over Kalamazoo River is a prestressed concrete box beam or girders - single or spread carrying M-99 (superior St) over Kalamazoo River in Calhoun County, Michigan. It was built in 1908 and reconstructed in 1993, so it is 117 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 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 7,449 vehicles a day, roughly 3% of them trucks, projected to reach 9,998 by 2018. The structure is 102 ft (31.1 m) long and 99 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesM-99 (superior St)
CrossesKalamazoo River
LocationIn Albion
RouteState Highway 99
CountyCalhoun County
StateMichigan
Coordinates42.24576, -84.75303
Functional classUrban 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.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating38.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length102 ft (31.1 m)
Longest span51 ft (15.5 m)
Deck width99 ft (30.1 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,449 (2007)
Projected traffic9,998 by 2018
Trucks3%
Lanes on structure4
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

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-99 (superior St) over Kalamazoo River built?

It was built in 1908, making it 117 years old in 2025. It was reconstructed in 1993.

What condition is M-99 (superior St) 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 September 2023.

How much traffic does M-99 (superior St) over Kalamazoo River carry?

About 7,449 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is M-99 (superior St) over Kalamazoo River?

The structure is 102 ft (31.1 m) long with a longest span of 51 ft (15.5 m) and a deck 99 ft wide.

Who owns M-99 (superior St) over Kalamazoo River?

It is owned by the State Highway Agency.