US Bridges

Blacks Corners Rd. over Weston Drain

Fair

Lapeer County, Michigan · Sec. 31 Imlay Twp. · Structure no. 000000000005428

Built
1972
53 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
29 ft
2 main spans
Daily traffic
95
2018 count
Owner
County
County Highway Agency

About this bridge

Blacks Corners Rd. over Weston Drain is a steel culvert carrying Blacks Corners Rd. over Weston Drain in Lapeer 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 95 vehicles a day, projected to reach 116 by 2038. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesBlacks Corners Rd.
CrossesWeston Drain
LocationSec. 31 Imlay Twp.
RouteCounty Highway 0
CountyLapeer County
StateMichigan
Coordinates42.9771, -83.09423
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating77.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2018)
Projected traffic116 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Blacks Corners Rd. over Weston Drain built?

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

What condition is Blacks Corners Rd. over Weston 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 July 2023.

How much traffic does Blacks Corners Rd. over Weston Drain carry?

About 95 vehicles per day (2018 count).

How long is Blacks Corners Rd. over Weston Drain?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.6 m).

Who owns Blacks Corners Rd. over Weston Drain?

It is owned by the County Highway Agency.