US Bridges

Nashville HWY over Shanty Brook

Good

Eaton County, Michigan · 0.3 MI S of Vermontville · Structure no. 000000000002343

Built
1986
39 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
1,878
2011 count
Owner
County
County Highway Agency

About this bridge

Nashville HWY over Shanty Brook is a prestressed concrete box beam or girders - multiple carrying Nashville HWY over Shanty Brook in Eaton County, Michigan. It was built in 1986, so it is 39 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 1,878 vehicles a day, projected to reach 3,100 by 2013. The structure is 52 ft (15.8 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesNashville HWY
CrossesShanty Brook
Location0.3 MI S of Vermontville
RouteCounty Highway 2352
CountyEaton County
StateMichigan
Coordinates42.61101, -85.03258
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating34.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length52 ft (15.8 m)
Longest span52 ft (15.8 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,878 (2011)
Projected traffic3,100 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 Nashville HWY over Shanty Brook built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nashville HWY over Shanty Brook 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 Nashville HWY over Shanty Brook carry?

About 1,878 vehicles per day (2011 count).

How long is Nashville HWY over Shanty Brook?

The structure is 52 ft (15.8 m) long with a longest span of 52 ft (15.8 m) and a deck 37 ft wide.

Who owns Nashville HWY over Shanty Brook?

It is owned by the County Highway Agency.