US Bridges

Mc Cann Road over Thornapple River

FairPosted for load

Barry County, Michigan · 1.5 MI N of M-37 · Structure no. 000000000000571

Built
1987
38 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
175 ft
3 main spans
Daily traffic
277
2003 count
Owner
County
County Highway Agency

About this bridge

Mc Cann Road over Thornapple River is a prestressed concrete box beam or girders - multiple carrying Mc Cann Road over Thornapple River in Barry County, Michigan. It was built in 1987, so it is 38 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 277 vehicles a day, projected to reach 360 by 2023. The structure is 175 ft (53.3 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMc Cann Road
CrossesThornapple River
Location1.5 MI N of M-37
RouteCounty Highway 0
CountyBarry County
StateMichigan
Coordinates42.69099, -85.413
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: 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 rating55.3 US tons
Inventory rating33.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length175 ft (53.3 m)
Longest span58 ft (17.6 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic277 (2003)
Projected traffic360 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 River built?

It was built in 1987, making it 38 years old in 2025.

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

About 277 vehicles per day (2003 count).

How long is Mc Cann Road over Thornapple River?

The structure is 175 ft (53.3 m) long with a longest span of 58 ft (17.6 m) and a deck 31 ft wide.

Who owns Mc Cann Road over Thornapple River?

It is owned by the County Highway Agency.