US Bridges

33 Mile Road over Coon Creek

Good

Macomb County, Michigan · 0.5 MI East of Wolcott RD · Structure no. 000000000006286

Built
1965
60 years old
Condition
Good
inspected July 2023
Type
Culvert
Steel
Length
35 ft
2 main spans
Daily traffic
180
2009 count
Owner
County
County Highway Agency

About this bridge

33 Mile Road over Coon Creek is a steel culvert carrying 33 Mile Road over Coon Creek in Macomb County, Michigan. It was built in 1965, so it is 60 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 180 vehicles a day, roughly 2% of them trucks, projected to reach 295 by 2029. The structure is 35 ft (10.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Carries33 Mile Road
CrossesCoon Creek
Location0.5 MI East of Wolcott RD
RouteCounty Highway 0
Coordinates42.8202, -82.93335
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating40.7 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length35 ft (10.6 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2009)
Projected traffic295 by 2029
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

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 33 Mile Road over Coon Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is 33 Mile Road over Coon Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does 33 Mile Road over Coon Creek carry?

About 180 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is 33 Mile Road over Coon Creek?

The structure is 35 ft (10.6 m) long with a longest span of 15 ft (4.5 m).

Who owns 33 Mile Road over Coon Creek?

It is owned by the County Highway Agency.