US Bridges

M-231 over Little Robinson Creek

Good

Ottawa County, Michigan · 3.7 MI N of M-45 · Structure no. 000000000013302

Built
2013
12 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
548 ft
4 main spans
Daily traffic
18,700
2010 count
Owner
State
State Highway Agency

About this bridge

M-231 over Little Robinson Creek is a prestressed concrete stringer/multi-beam or girder carrying M-231 over Little Robinson Creek in Ottawa County, Michigan. It was built in 2013, so it is 12 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,700 vehicles a day, roughly 7% of them trucks, projected to reach 22,000 by 2030. The structure is 548 ft (167 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-231
CrossesLittle Robinson Creek
Location3.7 MI N of M-45
RouteState Highway 231
CountyOttawa County
StateMichigan
Coordinates43.03067, -86.09217
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadGreater than HL 93
Structure length548 ft (167 m)
Longest span135 ft (41.1 m)
Deck width49 ft (14.9 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,700 (2010)
Projected traffic22,000 by 2030
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-231 over Little Robinson Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is M-231 over Little Robinson Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does M-231 over Little Robinson Creek carry?

About 18,700 vehicles per day (2010 count), of which roughly 7% are trucks.

How long is M-231 over Little Robinson Creek?

The structure is 548 ft (167 m) long with a longest span of 135 ft (41.1 m) and a deck 49 ft wide.

Who owns M-231 over Little Robinson Creek?

It is owned by the State Highway Agency.