US Bridges

M-37 NB over Service Road Calvin Coll

Fair

Kent County, Michigan · In Grand Rapids (e Side) · Structure no. 000000000004860

Built
1978
47 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
24,046
2007 count
Owner
State
State Highway Agency

About this bridge

M-37 NB over Service Road Calvin Coll is a steel stringer/multi-beam or girder carrying M-37 NB over Service Road Calvin Coll in Kent County, Michigan. It was built in 1978, so it is 47 years old, younger 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 24,046 vehicles a day, roughly 5% of them trucks, projected to reach 30,697 by 2018. The structure is 57 ft (17.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-37 NB
CrossesService Road Calvin Coll
LocationIn Grand Rapids (e Side)
RouteState Highway 37
CountyKent County
StateMichigan
Coordinates42.93153, -85.5845
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.5 US tons
Inventory rating66.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length57 ft (17.3 m)
Longest span57 ft (17.3 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,046 (2007)
Projected traffic30,697 by 2018
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 M-37 NB over Service Road Calvin Coll built?

It was built in 1978, making it 47 years old in 2025.

What condition is M-37 NB over Service Road Calvin Coll 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 M-37 NB over Service Road Calvin Coll carry?

About 24,046 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is M-37 NB over Service Road Calvin Coll?

The structure is 57 ft (17.3 m) long with a longest span of 57 ft (17.3 m) and a deck 42 ft wide.

Who owns M-37 NB over Service Road Calvin Coll?

It is owned by the State Highway Agency.