US Bridges

Dickerson Road over Wiscoggin Drain

Fair

Tuscola County, Michigan · Sec 13-24 Akron Twp · Structure no. 000000000010479

Built
1988
37 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
934
2009 count
Owner
County
County Highway Agency

About this bridge

Dickerson Road over Wiscoggin Drain is a prestressed concrete box beam or girders - multiple carrying Dickerson Road over Wiscoggin Drain in Tuscola County, Michigan. It was built in 1988, so it is 37 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 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 934 vehicles a day, projected to reach 1,690 by 2029. The structure is 58 ft (17.7 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesDickerson Road
CrossesWiscoggin Drain
LocationSec 13-24 Akron Twp
RouteCounty Highway 7986
CountyTuscola County
StateMichigan
Coordinates43.61024, -83.48
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span57 ft (17.3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic934 (2009)
Projected traffic1,690 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 Dickerson Road over Wiscoggin Drain built?

It was built in 1988, making it 37 years old in 2025.

What condition is Dickerson Road over Wiscoggin Drain 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 2023.

How much traffic does Dickerson Road over Wiscoggin Drain carry?

About 934 vehicles per day (2009 count).

How long is Dickerson Road over Wiscoggin Drain?

The structure is 58 ft (17.7 m) long with a longest span of 57 ft (17.3 m) and a deck 38 ft wide.

Who owns Dickerson Road over Wiscoggin Drain?

It is owned by the County Highway Agency.