US Bridges

28 Mile Road over Coon Creek

Fair

Macomb County, Michigan · 300 Ft East of North Ave · Structure no. 000000000006372

Built
1969
56 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
70
2009 count
Owner
County
County Highway Agency

About this bridge

28 Mile Road over Coon Creek is a prestressed concrete stringer/multi-beam or girder carrying 28 Mile Road over Coon Creek in Macomb County, Michigan. It was built in 1969, so it is 56 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 70 vehicles a day, roughly 2% of them trucks, projected to reach 115 by 2029. The structure is 36 ft (10.9 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries28 Mile Road
CrossesCoon Creek
Location300 Ft East of North Ave
RouteCounty Highway 0
CountyMacomb County
StateMichigan
Coordinates42.74723, -82.87687
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (10.9 m)
Longest span34 ft (10.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2009)
Projected traffic115 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 28 Mile Road over Coon Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is 28 Mile Road over Coon 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 July 2023.

How much traffic does 28 Mile Road over Coon Creek carry?

About 70 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is 28 Mile Road over Coon Creek?

The structure is 36 ft (10.9 m) long with a longest span of 34 ft (10.3 m) and a deck 33 ft wide.

Who owns 28 Mile Road over Coon Creek?

It is owned by the County Highway Agency.