US Bridges

M-11 over Grand River

Fair

Kent County, Michigan · In Grandville · Structure no. 000000000004862

Built
1930
95 years old, rebuilt 1985
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
550 ft
8 main spans
Daily traffic
21,410
2007 count
Owner
State
State Highway Agency

About this bridge

M-11 over Grand River is a steel stringer/multi-beam or girder carrying M-11 over Grand River in Kent County, Michigan. It was built in 1930 and reconstructed in 1985, so it is 95 years old, older 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 5 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 21,410 vehicles a day, roughly 8% of them trucks, projected to reach 30,419 by 2018. The structure is 550 ft (167.6 m) long and 68 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesM-11
CrossesGrand River
LocationIn Grandville
RouteState Highway 11
CountyKent County
StateMichigan
Coordinates42.9149, -85.76649
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadH 15
Structure length550 ft (167.6 m)
Longest span75 ft (22.9 m)
Deck width68 ft (20.8 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,410 (2007)
Projected traffic30,419 by 2018
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was M-11 over Grand River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1985.

What condition is M-11 over Grand River 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 October 2023.

How much traffic does M-11 over Grand River carry?

About 21,410 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is M-11 over Grand River?

The structure is 550 ft (167.6 m) long with a longest span of 75 ft (22.9 m) and a deck 68 ft wide.

Who owns M-11 over Grand River?

It is owned by the State Highway Agency.