US Bridges

Canboro Road over Shebeon Drain

Fair

Huron County, Michigan · Sec. 5-8 Brookfield Twp. · Structure no. 000000000003572

Built
1996
29 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
200
2009 count
Owner
County
County Highway Agency

About this bridge

Canboro Road over Shebeon Drain is a prestressed concrete box beam or girders - multiple carrying Canboro Road over Shebeon Drain in Huron County, Michigan. It was built in 1996, so it is 29 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 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 200 vehicles a day, roughly 1% of them trucks, projected to reach 360 by 2029. The structure is 70 ft (21.3 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCanboro Road
CrossesShebeon Drain
LocationSec. 5-8 Brookfield Twp.
RouteCounty Highway 0
CountyHuron County
StateMichigan
Coordinates43.7423, -83.33666
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.8 US tons
Inventory rating47.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length70 ft (21.3 m)
Longest span69 ft (20.9 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2009)
Projected traffic360 by 2029
Trucks1%
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 Canboro Road over Shebeon Drain built?

It was built in 1996, making it 29 years old in 2025.

What condition is Canboro Road over Shebeon 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 September 2023.

How much traffic does Canboro Road over Shebeon Drain carry?

About 200 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is Canboro Road over Shebeon Drain?

The structure is 70 ft (21.3 m) long with a longest span of 69 ft (20.9 m) and a deck 34 ft wide.

Who owns Canboro Road over Shebeon Drain?

It is owned by the County Highway Agency.