US Bridges

M-6 over Plaster Creek

Good

Kent County, Michigan · Gaines Twp Sec 3 · Structure no. 000000000013066

Built
2001
24 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
39 ft
1 main span
Daily traffic
40,180
2007 count
Owner
State
State Highway Agency

About this bridge

M-6 over Plaster Creek is a concrete culvert carrying M-6 over Plaster Creek in Kent County, Michigan. It was built in 2001, so it is 24 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 40,180 vehicles a day, roughly 8% of them trucks, projected to reach 29,800 by 2015. The structure is 39 ft (11.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-6
CrossesPlaster Creek
LocationGaines Twp Sec 3
RouteState Highway 6
CountyKent County
StateMichigan
Coordinates42.85163, -85.58962
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length39 ft (11.8 m)
Longest span36 ft (11.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,180 (2007)
Projected traffic29,800 by 2015
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-6 over Plaster Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is M-6 over Plaster 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 February 2024.

How much traffic does M-6 over Plaster Creek carry?

About 40,180 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is M-6 over Plaster Creek?

The structure is 39 ft (11.8 m) long with a longest span of 36 ft (11.1 m).

Who owns M-6 over Plaster Creek?

It is owned by the State Highway Agency.