US Bridges

M-46 over Sucker Creek

Fair

Tuscola County, Michigan · 6.9 MI E of M-24 · Structure no. 000000000010425

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
3,520
2007 count
Owner
State
State Highway Agency

About this bridge

M-46 over Sucker Creek is a concrete continuous slab carrying M-46 over Sucker Creek in Tuscola County, Michigan. It was built in 1967, so it is 58 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 3,520 vehicles a day, roughly 9% of them trucks, projected to reach 5,111 by 2018. The structure is 70 ft (21.3 m) long and 48 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-46
CrossesSucker Creek
Location6.9 MI E of M-24
RouteState Highway 46
CountyTuscola County
StateMichigan
Coordinates43.41173, -83.24576
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.8 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length70 ft (21.3 m)
Longest span28 ft (8.5 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,520 (2007)
Projected traffic5,111 by 2018
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-46 over Sucker Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is M-46 over Sucker 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-46 over Sucker Creek carry?

About 3,520 vehicles per day (2007 count), of which roughly 9% are trucks.

How long is M-46 over Sucker Creek?

The structure is 70 ft (21.3 m) long with a longest span of 28 ft (8.5 m) and a deck 48 ft wide.

Who owns M-46 over Sucker Creek?

It is owned by the State Highway Agency.