US Bridges

Allen Road over Allen Drain

Fair

Tuscola County, Michigan · Sec 5-6 Akron Twp · Structure no. 000000000010542

Built
1980
45 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
15
2009 count
Owner
County
County Highway Agency

About this bridge

Allen Road over Allen Drain is a prestressed concrete tee beam carrying Allen Road over Allen Drain in Tuscola County, Michigan. It was built in 1980, so it is 45 years old, younger 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 15 vehicles a day, projected to reach 29 by 2029. The structure is 46 ft (14 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesAllen Road
CrossesAllen Drain
LocationSec 5-6 Akron Twp
RouteCounty Highway 0
CountyTuscola County
StateMichigan
Coordinates43.63817, -83.56538
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating42.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2009)
Projected traffic29 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 Allen Road over Allen Drain built?

It was built in 1980, making it 45 years old in 2025.

What condition is Allen Road over Allen Drain 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 April 2023.

How much traffic does Allen Road over Allen Drain carry?

About 15 vehicles per day (2009 count).

How long is Allen Road over Allen Drain?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns Allen Road over Allen Drain?

It is owned by the County Highway Agency.