US Bridges

I-196 Ramp M-21BR over CSX RR

Fair

Kent County, Michigan · In Wyoming · Structure no. 000000000004805

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
218 ft
4 main spans
Daily traffic
6,208
2007 count
Owner
State
State Highway Agency

About this bridge

I-196 Ramp M-21BR over CSX RR is a prestressed concrete stringer/multi-beam or girder carrying I-196 Ramp M-21BR over CSX RR in Kent County, Michigan. It was built in 1965, so it is 60 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 6,208 vehicles a day, roughly 11% of them trucks, projected to reach 6,782 by 2018. The structure is 218 ft (66.3 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI-196 Ramp M-21BR
CrossesCSX RR
LocationIn Wyoming
RouteInterstate 196
CountyKent County
StateMichigan
Coordinates42.92879, -85.73184
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.
Substructure7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length218 ft (66.3 m)
Longest span70 ft (21.2 m)
Deck width44 ft (13.5 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,208 (2007)
Projected traffic6,782 by 2018
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 Ramp M-21BR over CSX RR built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-196 Ramp M-21BR over CSX RR 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 Ramp M-21BR over CSX RR carry?

About 6,208 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is I-196 Ramp M-21BR over CSX RR?

The structure is 218 ft (66.3 m) long with a longest span of 70 ft (21.2 m) and a deck 44 ft wide.

Who owns I-196 Ramp M-21BR over CSX RR?

It is owned by the State Highway Agency.