US Bridges

Forest Road over Wiscoggin Drain

Fair

Tuscola County, Michigan · Sec 26 Akron Twp · Structure no. 000000000010527

Built
1959
66 years old, rebuilt 1987
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
908
2009 count
Owner
County
County Highway Agency

About this bridge

Forest Road over Wiscoggin Drain is a prestressed concrete tee beam carrying Forest Road over Wiscoggin Drain in Tuscola County, Michigan. It was built in 1959 and reconstructed in 1987, so it is 66 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 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 908 vehicles a day, projected to reach 1,640 by 2029. The structure is 56 ft (17.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesForest Road
CrossesWiscoggin Drain
LocationSec 26 Akron Twp
RouteCounty Highway 0
CountyTuscola County
StateMichigan
Coordinates43.67966, -83.49155
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating58.8 US tons
Inventory rating35.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span55 ft (16.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic908 (2009)
Projected traffic1,640 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 Forest Road over Wiscoggin Drain built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1987.

What condition is Forest 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 Forest Road over Wiscoggin Drain carry?

About 908 vehicles per day (2009 count).

How long is Forest Road over Wiscoggin Drain?

The structure is 56 ft (17.2 m) long with a longest span of 55 ft (16.8 m) and a deck 26 ft wide.

Who owns Forest Road over Wiscoggin Drain?

It is owned by the County Highway Agency.