US Bridges

Hall Road over Potts Drain

Good

Sanilac County, Michigan · Sec 17-20 Buel Twp · Structure no. 000000000009578

Built
1980
45 years old
Condition
Good
inspected May 2024
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
135
2010 count
Owner
County
County Highway Agency

About this bridge

Hall Road over Potts Drain is a steel culvert carrying Hall Road over Potts Drain in Sanilac 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 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 135 vehicles a day, roughly 5% of them trucks, projected to reach 245 by 2030. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesHall Road
CrossesPotts Drain
LocationSec 17-20 Buel Twp
RouteCounty Highway 0
Coordinates43.28931, -82.74748
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length21 ft (6.3 m)
Longest span21 ft (6.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135 (2010)
Projected traffic245 by 2030
Trucks5%
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 Hall Road over Potts Drain built?

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

What condition is Hall Road over Potts Drain 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 2024.

How much traffic does Hall Road over Potts Drain carry?

About 135 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Hall Road over Potts Drain?

The structure is 21 ft (6.3 m) long with a longest span of 21 ft (6.3 m).

Who owns Hall Road over Potts Drain?

It is owned by the County Highway Agency.