US Bridges

Ringle Road over Allen Extn Drain

Fair

Tuscola County, Michigan · Sec 3-4 Fairgrove Twp · Structure no. 000000000010588

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
390
2009 count
Owner
County
County Highway Agency

About this bridge

Ringle Road over Allen Extn Drain is a steel stringer/multi-beam or girder carrying Ringle Road over Allen Extn Drain in Tuscola County, Michigan. It was built in 1965, so it is 60 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 5 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 390 vehicles a day, projected to reach 700 by 2029. The structure is 30 ft (9.2 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRingle Road
CrossesAllen Extn Drain
LocationSec 3-4 Fairgrove Twp
RouteCounty Highway 0
CountyTuscola County
StateMichigan
Coordinates43.5607, -83.52429
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.7 US tons
Inventory rating33.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length30 ft (9.2 m)
Longest span30 ft (9 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2009)
Projected traffic700 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Ringle Road over Allen Extn Drain built?

It was built in 1965, making it 60 years old in 2025.

What condition is Ringle Road over Allen Extn 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 May 2023.

How much traffic does Ringle Road over Allen Extn Drain carry?

About 390 vehicles per day (2009 count).

How long is Ringle Road over Allen Extn Drain?

The structure is 30 ft (9.2 m) long with a longest span of 30 ft (9 m) and a deck 28 ft wide.

Who owns Ringle Road over Allen Extn Drain?

It is owned by the County Highway Agency.