US Bridges

Deckerville Road over Cass River

Fair

Tuscola County, Michigan · Sec 30-31 Ellington Twp · Structure no. 000000000010464

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
180 ft
3 main spans
Daily traffic
2,920
2009 count
Owner
County
County Highway Agency

About this bridge

Deckerville Road over Cass River is a prestressed concrete box beam or girders - multiple carrying Deckerville Road over Cass River in Tuscola County, Michigan. It was built in 1966, so it is 59 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 6 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 2,920 vehicles a day, projected to reach 5,280 by 2029. The structure is 180 ft (54.9 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesDeckerville Road
CrossesCass River
LocationSec 30-31 Ellington Twp
RouteCounty Highway 7966
CountyTuscola County
StateMichigan
Coordinates43.51056, -83.34278
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating38.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span59 ft (17.9 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,920 (2009)
Projected traffic5,280 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Deckerville Road over Cass River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Deckerville 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 June 2023.

How much traffic does Deckerville Road over Cass River carry?

About 2,920 vehicles per day (2009 count).

How long is Deckerville Road over Cass River?

The structure is 180 ft (54.9 m) long with a longest span of 59 ft (17.9 m) and a deck 30 ft wide.

Who owns Deckerville Road over Cass River?

It is owned by the County Highway Agency.