US Bridges

M-52 over N Br Bad River

Fair

Saginaw County, Michigan · In ST Charles · Structure no. 000000000009063

Built
1929
96 years old, rebuilt 1999
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
2 main spans
Daily traffic
10,976
2007 count
Owner
State
State Highway Agency

About this bridge

M-52 over N Br Bad River is a prestressed concrete stringer/multi-beam or girder carrying M-52 over N Br Bad River in Saginaw County, Michigan. It was built in 1929 and reconstructed in 1999, so it is 96 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 6 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 10,976 vehicles a day, roughly 3% of them trucks, projected to reach 14,089 by 2018. The structure is 100 ft (30.4 m) long and 55 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesM-52
CrossesN Br Bad River
LocationIn ST Charles
RouteState Highway 52
CountySaginaw County
StateMichigan
Coordinates43.30199, -84.14389
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.1 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length100 ft (30.4 m)
Longest span50 ft (15.2 m)
Deck width55 ft (16.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,976 (2007)
Projected traffic14,089 by 2018
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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-52 over N Br Bad River built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1999.

What condition is M-52 over N Br 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 July 2023.

How much traffic does M-52 over N Br Bad River carry?

About 10,976 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is M-52 over N Br Bad River?

The structure is 100 ft (30.4 m) long with a longest span of 50 ft (15.2 m) and a deck 55 ft wide.

Who owns M-52 over N Br Bad River?

It is owned by the State Highway Agency.