US Bridges

140th Ave over Black Creek

Fair

Allegan County, Michigan · Approx 1/4MI E of 37th ST · Structure no. 000000000000284

Built
1974
51 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
35 ft
2 main spans
Daily traffic
920
2002 count
Owner
County
County Highway Agency

About this bridge

140th Ave over Black Creek is a steel culvert carrying 140th Ave over Black Creek in Allegan County, Michigan. It was built in 1974, so it is 51 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 920 vehicles a day, roughly 7% of them trucks, projected to reach 1,840 by 2022. The structure is 35 ft (10.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries140th Ave
CrossesBlack Creek
LocationApprox 1/4MI E of 37th ST
RouteCounty Highway 0
CountyAllegan County
StateMichigan
Coordinates42.70976, -85.8987
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.5 US tons
Inventory rating49.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length35 ft (10.6 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic920 (2002)
Projected traffic1,840 by 2022
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 140th Ave over Black Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is 140th Ave over Black Creek 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 140th Ave over Black Creek carry?

About 920 vehicles per day (2002 count), of which roughly 7% are trucks.

How long is 140th Ave over Black Creek?

The structure is 35 ft (10.6 m) long with a longest span of 15 ft (4.5 m).

Who owns 140th Ave over Black Creek?

It is owned by the County Highway Agency.