US Bridges

Canboro Road over East Br. Pigeon River

Good

Huron County, Michigan · Sec. 3-10 Grant Twp. · Structure no. 000000000003594

Built
2008
17 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
125
2009 count
Owner
County
County Highway Agency

About this bridge

Canboro Road over East Br. Pigeon River is a prestressed concrete box beam or girders - multiple carrying Canboro Road over East Br. Pigeon River in Huron County, Michigan. It was built in 2008, so it is 17 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 125 vehicles a day, roughly 3% of them trucks, projected to reach 225 by 2029. The structure is 72 ft (21.9 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCanboro Road
CrossesEast Br. Pigeon River
LocationSec. 3-10 Grant Twp.
RouteCounty Highway 0
Coordinates43.74591, -83.17299
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 alignment6: Equal to present minimum criteria
Operating rating74.3 US tons
Inventory rating44.5 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span71 ft (21.5 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2009)
Projected traffic225 by 2029
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 East Br. Pigeon River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Canboro Road over East Br. Pigeon River 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 Canboro Road over East Br. Pigeon River carry?

About 125 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is Canboro Road over East Br. Pigeon River?

The structure is 72 ft (21.9 m) long with a longest span of 71 ft (21.5 m) and a deck 31 ft wide.

Who owns Canboro Road over East Br. Pigeon River?

It is owned by the County Highway Agency.