US Bridges

Shaytown Road over Sebewa Creek

PoorPosted for load

Eaton County, Michigan · 1.5 MI S of Sunfield · Structure no. 000000000002416

Built
1910
115 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
91
2010 count
Owner
County
County Highway Agency

About this bridge

Shaytown Road over Sebewa Creek is a steel stringer/multi-beam or girder carrying Shaytown Road over Sebewa Creek in Eaton County, Michigan. It was built in 1910, so it is 115 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 91 vehicles a day, projected to reach 225 by 2013. The structure is 28 ft (8.5 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesShaytown Road
CrossesSebewa Creek
Location1.5 MI S of Sunfield
RouteCounty Highway 0
CountyEaton County
StateMichigan
Coordinates42.73459, -84.97555
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 6 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.3 US tons
Inventory rating14.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width16 ft (5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91 (2010)
Projected traffic225 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Shaytown Road over Sebewa Creek built?

It was built in 1910, making it 115 years old in 2025.

What condition is Shaytown Road over Sebewa Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Shaytown Road over Sebewa Creek carry?

About 91 vehicles per day (2010 count).

How long is Shaytown Road over Sebewa Creek?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 16 ft wide.

Who owns Shaytown Road over Sebewa Creek?

It is owned by the County Highway Agency.