US Bridges

M-50 over Mud Creek

Good

Eaton County, Michigan · 0.3 MI SE of M-43 · Structure no. 000000000002232

Built
2013
12 years old
Condition
Good
inspected March 2025
Type
Culvert
Concrete
Length
35 ft
1 main span
Daily traffic
2,842
2013 count
Owner
State
State Highway Agency

About this bridge

M-50 over Mud Creek is a concrete culvert carrying M-50 over Mud Creek in Eaton 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 2,842 vehicles a day, roughly 17% of them trucks, projected to reach 3,350 by 2033. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-50
CrossesMud Creek
Location0.3 MI SE of M-43
RouteState Highway 50
CountyEaton County
StateMichigan
Coordinates42.75231, -85.0438
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
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length35 ft (10.8 m)
Longest span35 ft (10.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,842 (2013)
Projected traffic3,350 by 2033
Trucks17%
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 Mud Creek built?

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

What condition is M-50 over Mud 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 March 2025.

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

About 2,842 vehicles per day (2013 count), of which roughly 17% are trucks.

How long is M-50 over Mud Creek?

The structure is 35 ft (10.8 m) long with a longest span of 35 ft (10.8 m).

Who owns M-50 over Mud Creek?

It is owned by the State Highway Agency.