US Bridges

M-57 over S Fork of Bad River

Fair

Saginaw County, Michigan · 0.4 M West of Merrill RD · Structure no. 000000000009040

Built
1958
67 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
3,741
2007 count
Owner
State
State Highway Agency

About this bridge

M-57 over S Fork of Bad River is a concrete culvert carrying M-57 over S Fork of Bad River in Saginaw County, Michigan. It was built in 1958, so it is 67 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 3,741 vehicles a day, roughly 11% of them trucks, projected to reach 4,100 by 2018. The structure is 25 ft (7.7 m) long.

Location

Open in Google Maps
CarriesM-57
CrossesS Fork of Bad River
Location0.4 M West of Merrill RD
RouteState Highway 57
CountySaginaw County
StateMichigan
Coordinates43.18492, -84.33433
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.7 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,741 (2007)
Projected traffic4,100 by 2018
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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-57 over S Fork of Bad River built?

It was built in 1958, making it 67 years old in 2025.

What condition is M-57 over S Fork of Bad 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 April 2023.

How much traffic does M-57 over S Fork of Bad River carry?

About 3,741 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is M-57 over S Fork of Bad River?

The structure is 25 ft (7.7 m) long with a longest span of 12 ft (3.7 m).

Who owns M-57 over S Fork of Bad River?

It is owned by the State Highway Agency.