US Bridges

34 Mile Road over Coon Creek

Fair

Macomb County, Michigan · 0.2 MI West of Coon Creek · Structure no. 000000000006289

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
29 ft
2 main spans
Daily traffic
90
2009 count
Owner
County
County Highway Agency

About this bridge

34 Mile Road over Coon Creek is a steel culvert carrying 34 Mile Road over Coon Creek in Macomb County, Michigan. It was built in 1975, so it is 50 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 90 vehicles a day, roughly 2% of them trucks, projected to reach 148 by 2029. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries34 Mile Road
CrossesCoon Creek
Location0.2 MI West of Coon Creek
RouteCounty Highway 0
CountyMacomb County
StateMichigan
Coordinates42.83492, -82.92946
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating87.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2009)
Projected traffic148 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 34 Mile Road over Coon Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is 34 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 34 Mile Road over Coon Creek carry?

About 90 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is 34 Mile Road over Coon Creek?

The structure is 29 ft (8.8 m) long with a longest span of 13 ft (3.9 m).

Who owns 34 Mile Road over Coon Creek?

It is owned by the County Highway Agency.