US Bridges

Dodge Road over Cass River

Fair

Tuscola County, Michigan · Sec 12 Ellington Twp · Structure no. 000000000012599

Built
1978
47 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
195 ft
3 main spans
Daily traffic
655
2014 count
Owner
County
County Highway Agency

About this bridge

Dodge Road over Cass River is a prestressed concrete box beam or girders - multiple carrying Dodge Road over Cass River in Tuscola County, Michigan. It was built in 1978, so it is 47 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.

It carries about 655 vehicles a day, roughly 3% of them trucks, projected to reach 882 by 2034. The structure is 195 ft (59.4 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesDodge Road
CrossesCass River
LocationSec 12 Ellington Twp
RouteCounty Highway 7981
CountyTuscola County
StateMichigan
Coordinates43.56967, -83.23214
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 alignment7: Better than present minimum criteria
Operating rating73.1 US tons
Inventory rating43.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span65 ft (19.8 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic655 (2014)
Projected traffic882 by 2034
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$217,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dodge Road over Cass River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Dodge Road over Cass 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 April 2024.

How much traffic does Dodge Road over Cass River carry?

About 655 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is Dodge Road over Cass River?

The structure is 195 ft (59.4 m) long with a longest span of 65 ft (19.8 m) and a deck 36 ft wide.

Who owns Dodge Road over Cass River?

It is owned by the County Highway Agency.