US Bridges

Blakely Road over East Br. Pigeon River

Good

Huron County, Michigan · Sec. 14 Grant Twp. · Structure no. 000000000003601

Built
2017
8 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
62
2016 count
Owner
County
County Highway Agency

About this bridge

Blakely Road over East Br. Pigeon River is a prestressed concrete stringer/multi-beam or girder carrying Blakely Road over East Br. Pigeon River in Huron County, Michigan. It was built in 2017, so it is 8 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 62 vehicles a day, projected to reach 112 by 2036. The structure is 62 ft (18.9 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBlakely Road
CrossesEast Br. Pigeon River
LocationSec. 14 Grant Twp.
RouteCounty Highway 0
Coordinates43.73111, -83.14935
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating96.5 US tons
Inventory rating74.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length62 ft (18.9 m)
Longest span59 ft (18.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62 (2016)
Projected traffic112 by 2036
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Blakely Road over East Br. Pigeon River built?

It was built in 2017, making it 8 years old in 2025.

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

About 62 vehicles per day (2016 count).

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

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18.1 m) and a deck 35 ft wide.

Who owns Blakely Road over East Br. Pigeon River?

It is owned by the County Highway Agency.