US Bridges

I-196 M-21 EB over US-131BR & Ionia

Fair

Kent County, Michigan · In Grand Rapids · Structure no. 000000000004785

Built
1964
61 years old, rebuilt 2006
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
230 ft
4 main spans
Daily traffic
34,546
2007 count
Owner
State
State Highway Agency

About this bridge

I-196 M-21 EB over US-131BR & Ionia is a steel continuous stringer/multi-beam or girder carrying I-196 M-21 EB over US-131BR & Ionia in Kent County, Michigan. It was built in 1964 and reconstructed in 2006, so it is 61 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 34,546 vehicles a day, roughly 9% of them trucks, projected to reach 49,000 by 2022. The structure is 230 ft (70.1 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-196 M-21 EB
CrossesUS-131BR & Ionia
LocationIn Grand Rapids
RouteInterstate 196
Coordinates42.97159, -85.66881
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating48.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length230 ft (70.1 m)
Longest span74 ft (22.5 m)
Deck width73 ft (22.3 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,546 (2007)
Projected traffic49,000 by 2022
Trucks9%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-196 M-21 EB over US-131BR & Ionia built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2006.

What condition is I-196 M-21 EB over US-131BR & Ionia 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 April 2023.

How much traffic does I-196 M-21 EB over US-131BR & Ionia carry?

About 34,546 vehicles per day (2007 count), of which roughly 9% are trucks.

How long is I-196 M-21 EB over US-131BR & Ionia?

The structure is 230 ft (70.1 m) long with a longest span of 74 ft (22.5 m) and a deck 73 ft wide.

Who owns I-196 M-21 EB over US-131BR & Ionia?

It is owned by the State Highway Agency.