US Bridges

M-6 WB over Jackson ST

Fair

Ottawa County, Michigan · Jamestown Twp Sec 2 · Structure no. 000000000013055

Built
2002
23 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
174 ft
3 main spans
Daily traffic
16,313
2007 count
Owner
State
State Highway Agency

About this bridge

M-6 WB over Jackson ST is a prestressed concrete stringer/multi-beam or girder carrying M-6 WB over Jackson ST in Ottawa County, Michigan. It was built in 2002, so it is 23 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 16,313 vehicles a day, roughly 8% of them trucks, projected to reach 19,800 by 2015. The structure is 174 ft (53.1 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-6 WB
CrossesJackson ST
LocationJamestown Twp Sec 2
RouteState Highway 6
CountyOttawa County
StateMichigan
Coordinates42.85632, -85.8134
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionSeptember 2024
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 alignment9: Superior to present desirable criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length174 ft (53.1 m)
Longest span59 ft (18.1 m)
Deck width62 ft (19 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,313 (2007)
Projected traffic19,800 by 2015
Trucks8%
Lanes on structure3
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-6 WB over Jackson ST built?

It was built in 2002, making it 23 years old in 2025.

What condition is M-6 WB over Jackson ST 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 September 2024.

How much traffic does M-6 WB over Jackson ST carry?

About 16,313 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is M-6 WB over Jackson ST?

The structure is 174 ft (53.1 m) long with a longest span of 59 ft (18.1 m) and a deck 62 ft wide.

Who owns M-6 WB over Jackson ST?

It is owned by the State Highway Agency.