US Bridges

M-247 over Kawkawlin River

Fair

Bay County, Michigan · 1.0 MI N of M-13 JCT · Structure no. 000000000000581

Built
1935
90 years old, rebuilt 1999
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
134 ft
3 main spans
Daily traffic
5,842
2007 count
Owner
State
State Highway Agency

About this bridge

M-247 over Kawkawlin River is a prestressed concrete stringer/multi-beam or girder carrying M-247 over Kawkawlin River in Bay County, Michigan. It was built in 1935 and reconstructed in 1999, so it is 90 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 5,842 vehicles a day, roughly 2% of them trucks, projected to reach 11,328 by 2018. The structure is 134 ft (40.8 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesM-247
CrossesKawkawlin River
Location1.0 MI N of M-13 JCT
RouteState Highway 247
CountyBay County
StateMichigan
Coordinates43.64368, -83.91332
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating72.9 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length134 ft (40.8 m)
Longest span44 ft (13.3 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,842 (2007)
Projected traffic11,328 by 2018
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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-247 over Kawkawlin River built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1999.

What condition is M-247 over Kawkawlin 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-247 over Kawkawlin River carry?

About 5,842 vehicles per day (2007 count), of which roughly 2% are trucks.

How long is M-247 over Kawkawlin River?

The structure is 134 ft (40.8 m) long with a longest span of 44 ft (13.3 m) and a deck 42 ft wide.

Who owns M-247 over Kawkawlin River?

It is owned by the State Highway Agency.