US Bridges

M-50 over Duck Creek

Good

Ionia County, Michigan · 3.5 MI E of Kent CO · Structure no. 000000000003966

Built
2002
23 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
3,306
2007 count
Owner
State
State Highway Agency

About this bridge

M-50 over Duck Creek is a concrete slab carrying M-50 over Duck Creek in Ionia 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 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 3,306 vehicles a day, roughly 11% of them trucks, projected to reach 3,945 by 2018. The structure is 39 ft (11.8 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-50
CrossesDuck Creek
Location3.5 MI E of Kent CO
RouteState Highway 50
CountyIonia County
StateMichigan
Coordinates42.79575, -85.24203
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.3 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length39 ft (11.8 m)
Longest span36 ft (11 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,306 (2007)
Projected traffic3,945 by 2018
Trucks11%
Lanes on structure2
Traffic directionTwo-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-50 over Duck Creek built?

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

What condition is M-50 over Duck 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 November 2024.

How much traffic does M-50 over Duck Creek carry?

About 3,306 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is M-50 over Duck Creek?

The structure is 39 ft (11.8 m) long with a longest span of 36 ft (11 m) and a deck 41 ft wide.

Who owns M-50 over Duck Creek?

It is owned by the State Highway Agency.