US Bridges

M-227(S Kalamazoo) over Kalamazoo River

Fair

Calhoun County, Michigan · 0.1 MI S of Industrial RD · Structure no. 000000000001415

Built
1916
109 years old, rebuilt 1984
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
84 ft
1 main span
Daily traffic
9,775
2020 count
Owner
State
State Highway Agency

About this bridge

M-227(S Kalamazoo) over Kalamazoo River is a concrete arch - deck carrying M-227(S Kalamazoo) over Kalamazoo River in Calhoun County, Michigan. It was built in 1916 and reconstructed in 1984, so it is 109 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 9,775 vehicles a day, roughly 2% of them trucks, projected to reach 11,350 by 2040. The structure is 84 ft (25.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesM-227(S Kalamazoo)
CrossesKalamazoo River
Location0.1 MI S of Industrial RD
RouteState Highway 227
CountyCalhoun County
StateMichigan
Coordinates42.26468, -84.96404
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.7 US tons
Inventory rating38.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length84 ft (25.6 m)
Longest span82 ft (25 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,775 (2020)
Projected traffic11,350 by 2040
Trucks2%
Lanes on structure2
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-227(S Kalamazoo) over Kalamazoo River built?

It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1984.

What condition is M-227(S Kalamazoo) 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 June 2023.

How much traffic does M-227(S Kalamazoo) over Kalamazoo River carry?

About 9,775 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is M-227(S Kalamazoo) over Kalamazoo River?

The structure is 84 ft (25.6 m) long with a longest span of 82 ft (25 m) and a deck 34 ft wide.

Who owns M-227(S Kalamazoo) over Kalamazoo River?

It is owned by the State Highway Agency.