US Bridges

M-13|N Huron RD over Pinconning River

Good

Bay County, Michigan · In Pinconning · Structure no. 000000000000592

Built
2009
16 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
9,924
2007 count
Owner
State
State Highway Agency

About this bridge

M-13|N Huron RD over Pinconning River is a prestressed concrete box beam or girders - single or spread carrying M-13|N Huron RD over Pinconning River in Bay County, Michigan. It was built in 2009, so it is 16 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 9,924 vehicles a day, roughly 6% of them trucks, projected to reach 12,500 by 2030. The structure is 49 ft (14.9 m) long and 63 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesM-13|N Huron RD
CrossesPinconning River
LocationIn Pinconning
RouteState Highway 13
CountyBay County
StateMichigan
Coordinates43.85832, -83.96612
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating48.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length49 ft (14.9 m)
Longest span47 ft (14.4 m)
Deck width63 ft (19.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,924 (2007)
Projected traffic12,500 by 2030
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 M-13|N Huron RD over Pinconning River built?

It was built in 2009, making it 16 years old in 2025.

What condition is M-13|N Huron RD over Pinconning 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 April 2024.

How much traffic does M-13|N Huron RD over Pinconning River carry?

About 9,924 vehicles per day (2007 count), of which roughly 6% are trucks.

How long is M-13|N Huron RD over Pinconning River?

The structure is 49 ft (14.9 m) long with a longest span of 47 ft (14.4 m) and a deck 63 ft wide.

Who owns M-13|N Huron RD over Pinconning River?

It is owned by the State Highway Agency.