US Bridges

M-37 over CSX RR

Fair

Muskegon County, Michigan · 1.1 MI S of Bailey · Structure no. 000000000007614

Built
1999
26 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
167 ft
3 main spans
Daily traffic
8,296
2007 count
Owner
State
State Highway Agency

About this bridge

M-37 over CSX RR is a prestressed concrete stringer/multi-beam or girder carrying M-37 over CSX RR in Muskegon County, Michigan. It was built in 1999, so it is 26 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 8,296 vehicles a day, roughly 8% of them trucks, projected to reach 6,587 by 2018. The structure is 167 ft (51 m) long and 51 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesM-37
CrossesCSX RR
Location1.1 MI S of Bailey
RouteState Highway 37
CountyMuskegon County
StateMichigan
Coordinates43.26393, -85.81337
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating75 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length167 ft (51 m)
Longest span62 ft (19 m)
Deck width51 ft (15.4 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,296 (2007)
Projected traffic6,587 by 2018
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was M-37 over CSX RR built?

It was built in 1999, making it 26 years old in 2025.

What condition is M-37 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 November 2023.

How much traffic does M-37 over CSX RR carry?

About 8,296 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is M-37 over CSX RR?

The structure is 167 ft (51 m) long with a longest span of 62 ft (19 m) and a deck 51 ft wide.

Who owns M-37 over CSX RR?

It is owned by the State Highway Agency.