US Bridges

Caro Road over State I/C Drain

Good

Huron County, Michigan · Sec 16-17 Sebewaing Twp · Structure no. 000000000003653

Built
2014
11 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
185
2013 count
Owner
County
County Highway Agency

About this bridge

Caro Road over State I/C Drain is a prestressed concrete stringer/multi-beam or girder carrying Caro Road over State I/C Drain in Huron County, Michigan. It was built in 2014, so it is 11 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 185 vehicles a day, roughly 3% of them trucks, projected to reach 330 by 2033. The structure is 80 ft (24.4 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCaro Road
CrossesState I/C Drain
LocationSec 16-17 Sebewaing Twp
RouteCounty Highway 0
Coordinates43.72471, -83.43578
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating66.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length80 ft (24.4 m)
Longest span77 ft (23.6 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (2013)
Projected traffic330 by 2033
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Caro Road over State I/C Drain built?

It was built in 2014, making it 11 years old in 2025.

What condition is Caro Road over State I/C Drain in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Caro Road over State I/C Drain carry?

About 185 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is Caro Road over State I/C Drain?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.6 m) and a deck 35 ft wide.

Who owns Caro Road over State I/C Drain?

It is owned by the County Highway Agency.