US Bridges

Plank Road over Beaubien Creek Drain

Poor

St. Clair County, Michigan · Sec 5 Cottrellville Twp · Structure no. 000000000010159

Built
1988
37 years old
Condition
Poor
inspected April 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
250
1994 count
Owner
County
County Highway Agency

About this bridge

Plank Road over Beaubien Creek Drain is a steel culvert carrying Plank Road over Beaubien Creek Drain in St. Clair County, Michigan. It was built in 1988, so it is 37 years old, younger 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 4 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.

It carries about 250 vehicles a day, roughly 3% of them trucks, projected to reach 300 by 2014. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPlank Road
CrossesBeaubien Creek Drain
LocationSec 5 Cottrellville Twp
RouteCounty Highway 0
CountySt. Clair County
StateMichigan
Coordinates42.71818, -82.57973
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (1994)
Projected traffic300 by 2014
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$10,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Plank Road over Beaubien Creek Drain built?

It was built in 1988, making it 37 years old in 2025.

What condition is Plank Road over Beaubien Creek Drain 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 April 2024.

How much traffic does Plank Road over Beaubien Creek Drain carry?

About 250 vehicles per day (1994 count), of which roughly 3% are trucks.

How long is Plank Road over Beaubien Creek Drain?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Plank Road over Beaubien Creek Drain?

It is owned by the County Highway Agency.