US Bridges

M-50 over Sandstone Creek

Fair

Jackson County, Michigan · In Tomkins Center · Structure no. 000000000004405

Built
1927
98 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
1 main span
Daily traffic
2,042
2007 count
Owner
State
State Highway Agency

About this bridge

M-50 over Sandstone Creek is a steel stringer/multi-beam or girder carrying M-50 over Sandstone Creek in Jackson County, Michigan. It was built in 1927, so it is 98 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 2,042 vehicles a day, roughly 11% of them trucks, projected to reach 3,527 by 2018. The structure is 65 ft (19.8 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-50
CrossesSandstone Creek
LocationIn Tomkins Center
RouteState Highway 50
CountyJackson County
StateMichigan
Coordinates42.3732, -84.54481
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 8 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.9 US tons
Inventory rating50.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length65 ft (19.8 m)
Longest span60 ft (18.3 m)
Deck width36 ft (11.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,042 (2007)
Projected traffic3,527 by 2018
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on 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 Sandstone Creek built?

It was built in 1927, making it 98 years old in 2025.

What condition is M-50 over Sandstone Creek 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 August 2024.

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

About 2,042 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is M-50 over Sandstone Creek?

The structure is 65 ft (19.8 m) long with a longest span of 60 ft (18.3 m) and a deck 36 ft wide.

Who owns M-50 over Sandstone Creek?

It is owned by the State Highway Agency.