US Bridges

I-196 M-21 EB over Conrail (no Tracks)(abn)

Fair

Kent County, Michigan · In Wyoming · Structure no. 000000000004806

Built
1963
62 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
303 ft
3 main spans
Daily traffic
53,075
2015 count
Owner
State
State Highway Agency

About this bridge

I-196 M-21 EB over Conrail (no Tracks)(abn) is a steel stringer/multi-beam or girder carrying I-196 M-21 EB over Conrail (no Tracks)(abn) in Kent County, Michigan. It was built in 1963, so it is 62 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 53,075 vehicles a day, roughly 8% of them trucks, projected to reach 61,650 by 2035. The structure is 303 ft (92.3 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-196 M-21 EB
CrossesConrail (no Tracks)(abn)
LocationIn Wyoming
RouteInterstate 196
CountyKent County
StateMichigan
Coordinates42.93443, -85.72296
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating101.1 US tons
Inventory rating60.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length303 ft (92.3 m)
Longest span104 ft (31.8 m)
Deck width36 ft (11.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,075 (2015)
Projected traffic61,650 by 2035
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
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 Conrail (no Tracks)(abn) built?

It was built in 1963, making it 62 years old in 2025.

What condition is I-196 M-21 EB over Conrail (no Tracks)(abn) 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 2024.

How much traffic does I-196 M-21 EB over Conrail (no Tracks)(abn) carry?

About 53,075 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is I-196 M-21 EB over Conrail (no Tracks)(abn)?

The structure is 303 ft (92.3 m) long with a longest span of 104 ft (31.8 m) and a deck 36 ft wide.

Who owns I-196 M-21 EB over Conrail (no Tracks)(abn)?

It is owned by the State Highway Agency.