US Bridges

Mc Cann Road over Thornapple Raceway

Fair

Barry County, Michigan · 1.2 MI N of M-37 · Structure no. 000000000000570

Built
1948
77 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
38 ft
3 main spans
Daily traffic
333
2003 count
Owner
County
County Highway Agency

About this bridge

Mc Cann Road over Thornapple Raceway is a steel culvert carrying Mc Cann Road over Thornapple Raceway in Barry County, Michigan. It was built in 1948, so it is 77 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 5 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 333 vehicles a day, projected to reach 377 by 2023. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMc Cann Road
CrossesThornapple Raceway
Location1.2 MI N of M-37
RouteCounty Highway 0
CountyBarry County
StateMichigan
Coordinates42.68987, -85.41404
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadH 20
Structure length38 ft (11.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic333 (2003)
Projected traffic377 by 2023
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Mc Cann Road over Thornapple Raceway built?

It was built in 1948, making it 77 years old in 2025.

What condition is Mc Cann Road over Thornapple Raceway 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 Mc Cann Road over Thornapple Raceway carry?

About 333 vehicles per day (2003 count).

How long is Mc Cann Road over Thornapple Raceway?

The structure is 38 ft (11.6 m) long with a longest span of 10 ft (3 m).

Who owns Mc Cann Road over Thornapple Raceway?

It is owned by the County Highway Agency.