US Bridges

Kinsel HWY over Little Thornapple River

Good

Eaton County, Michigan · 1 MI SE of Chester · Structure no. 000000000002387

Built
1987
38 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
127
2010 count
Owner
County
County Highway Agency

About this bridge

Kinsel HWY over Little Thornapple River is a prestressed concrete box beam or girders - multiple carrying Kinsel HWY over Little Thornapple River in Eaton County, Michigan. It was built in 1987, so it is 38 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 127 vehicles a day, projected to reach 500 by 2013. The structure is 38 ft (11.5 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKinsel HWY
CrossesLittle Thornapple River
Location1 MI SE of Chester
RouteCounty Highway 0
Coordinates42.59719, -84.90629
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating35.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length38 ft (11.5 m)
Longest span37 ft (11.2 m)
Deck width34 ft (10.4 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127 (2010)
Projected traffic500 by 2013
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 Kinsel HWY over Little Thornapple River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Kinsel HWY over Little Thornapple 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 Kinsel HWY over Little Thornapple River carry?

About 127 vehicles per day (2010 count).

How long is Kinsel HWY over Little Thornapple River?

The structure is 38 ft (11.5 m) long with a longest span of 37 ft (11.2 m) and a deck 34 ft wide.

Who owns Kinsel HWY over Little Thornapple River?

It is owned by the County Highway Agency.