US Bridges

Bay City-Forestvil over State I/C Drain

Fair

Tuscola County, Michigan · Sec 2-11 Columbia Twp · Structure no. 000000000010486

Built
1984
41 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
1,198
2016 count
Owner
County
County Highway Agency

About this bridge

Bay City-Forestvil over State I/C Drain is a prestressed concrete box beam or girders - multiple carrying Bay City-Forestvil over State I/C 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 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 1,198 vehicles a day, roughly 3% of them trucks, projected to reach 1,378 by 2036. The structure is 40 ft (12.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBay City-Forestvil
CrossesState I/C Drain
LocationSec 2-11 Columbia Twp
RouteCounty Highway 7996
Coordinates43.65491, -83.38363
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.8 m)
Deck width40 ft (12.3 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,198 (2016)
Projected traffic1,378 by 2036
Trucks3%
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 Bay City-Forestvil over State I/C Drain built?

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

What condition is Bay City-Forestvil over State I/C 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 May 2023.

How much traffic does Bay City-Forestvil over State I/C Drain carry?

About 1,198 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is Bay City-Forestvil over State I/C Drain?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.8 m) and a deck 40 ft wide.

Who owns Bay City-Forestvil over State I/C Drain?

It is owned by the County Highway Agency.