US Bridges

Cass City Road over Wiscoggin Drain

Good

Tuscola County, Michigan · Sec 24-25 Akron Twp · Structure no. 000000000010540

Built
1984
41 years old
Condition
Good
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
78
2009 count
Owner
County
County Highway Agency

About this bridge

Cass City Road over Wiscoggin Drain is a prestressed concrete tee beam carrying Cass City Road over Wiscoggin Drain in Tuscola County, Michigan. It was built in 1984, so it is 41 years old, younger 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 78 vehicles a day, projected to reach 140 by 2029. The structure is 36 ft (11 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCass City Road
CrossesWiscoggin Drain
LocationSec 24-25 Akron Twp
RouteCounty Highway 0
Coordinates43.59582, -83.47058
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating61.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span32 ft (9.9 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2009)
Projected traffic140 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Cass City Road over Wiscoggin Drain built?

It was built in 1984, making it 41 years old in 2025.

What condition is Cass City Road over Wiscoggin Drain 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 April 2023.

How much traffic does Cass City Road over Wiscoggin Drain carry?

About 78 vehicles per day (2009 count).

How long is Cass City Road over Wiscoggin Drain?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.9 m) and a deck 32 ft wide.

Who owns Cass City Road over Wiscoggin Drain?

It is owned by the County Highway Agency.