US Bridges

Baldwin Road over Bad River

Good

Gratiot County, Michigan · Sec 3-4 North Star Twp · Structure no. 000000000003168

Built
2010
15 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
529
2009 count
Owner
County
County Highway Agency

About this bridge

Baldwin Road over Bad River is a prestressed concrete stringer/multi-beam or girder carrying Baldwin Road over Bad River in Gratiot County, Michigan. It was built in 2010, so it is 15 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 529 vehicles a day, projected to reach 786 by 2029. The structure is 51 ft (15.5 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBaldwin Road
CrossesBad River
LocationSec 3-4 North Star Twp
RouteCounty Highway 0
CountyGratiot County
StateMichigan
Coordinates43.2545, -84.5435
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating66.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length51 ft (15.5 m)
Longest span46 ft (14 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic529 (2009)
Projected traffic786 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Baldwin Road over Bad River built?

It was built in 2010, making it 15 years old in 2025.

What condition is Baldwin Road over Bad 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 May 2023.

How much traffic does Baldwin Road over Bad River carry?

About 529 vehicles per day (2009 count).

How long is Baldwin Road over Bad River?

The structure is 51 ft (15.5 m) long with a longest span of 46 ft (14 m) and a deck 36 ft wide.

Who owns Baldwin Road over Bad River?

It is owned by the County Highway Agency.