US Bridges

M-57 over Northwood Creek

Fair

Saginaw County, Michigan · 2.1 MI W of Genesee Col · Structure no. 000000000009038

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
5,039
2007 count
Owner
State
State Highway Agency

About this bridge

M-57 over Northwood Creek is a prestressed concrete box beam or girders - multiple carrying M-57 over Northwood Creek in Saginaw County, Michigan. It was built in 1985, so it is 40 years old, younger 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 5,039 vehicles a day, roughly 10% of them trucks, projected to reach 5,733 by 2018. The structure is 84 ft (25.6 m) long and 51 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesM-57
CrossesNorthwood Creek
Location2.1 MI W of Genesee Col
RouteState Highway 57
CountySaginaw County
StateMichigan
Coordinates43.17579, -83.97311
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating38.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length84 ft (25.6 m)
Longest span84 ft (25.6 m)
Deck width51 ft (15.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,039 (2007)
Projected traffic5,733 by 2018
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-57 over Northwood Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is M-57 over Northwood 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 October 2024.

How much traffic does M-57 over Northwood Creek carry?

About 5,039 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is M-57 over Northwood Creek?

The structure is 84 ft (25.6 m) long with a longest span of 84 ft (25.6 m) and a deck 51 ft wide.

Who owns M-57 over Northwood Creek?

It is owned by the State Highway Agency.