US Bridges

Ashmore Road over State I/C Drain Extn

Fair

Tuscola County, Michigan · Sec 14-15 Columbia Twp · Structure no. 000000000010563

Built
1972
53 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
75
2009 count
Owner
County
County Highway Agency

About this bridge

Ashmore Road over State I/C Drain Extn is a prestressed concrete tee beam carrying Ashmore Road over State I/C Drain Extn in Tuscola County, Michigan. It was built in 1972, so it is 53 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 75 vehicles a day, projected to reach 135 by 2029. The structure is 56 ft (17.1 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesAshmore Road
CrossesState I/C Drain Extn
LocationSec 14-15 Columbia Twp
RouteCounty Highway 0
CountyTuscola County
StateMichigan
Coordinates43.63242, -83.39272
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span52 ft (16 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2009)
Projected traffic135 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Ashmore Road over State I/C Drain Extn built?

It was built in 1972, making it 53 years old in 2025.

What condition is Ashmore Road over State I/C Drain Extn in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does Ashmore Road over State I/C Drain Extn carry?

About 75 vehicles per day (2009 count).

How long is Ashmore Road over State I/C Drain Extn?

The structure is 56 ft (17.1 m) long with a longest span of 52 ft (16 m) and a deck 32 ft wide.

Who owns Ashmore Road over State I/C Drain Extn?

It is owned by the County Highway Agency.