US Bridges

Ravine Road over Ranson Drain

Fair

Kalamazoo County, Michigan · Alamo Twp Sec 10 · Structure no. 000000000012889

Built
1979
46 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
24 ft
3 main spans
Daily traffic
3,074
2007 count
Owner
County
County Highway Agency

About this bridge

Ravine Road over Ranson Drain is a steel culvert carrying Ravine Road over Ranson Drain in Kalamazoo County, Michigan. It was built in 1979, so it is 46 years old, younger 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 3,074 vehicles a day, roughly 4% of them trucks, projected to reach 5,530 by 2027. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRavine Road
CrossesRanson Drain
LocationAlamo Twp Sec 10
RouteCounty Highway 0
CountyKalamazoo County
StateMichigan
Coordinates42.39715, -85.69056
Functional classRural Major Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span7 ft (2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,074 (2007)
Projected traffic5,530 by 2027
Trucks4%
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 Ravine Road over Ranson Drain built?

It was built in 1979, making it 46 years old in 2025.

What condition is Ravine Road over Ranson 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 October 2024.

How much traffic does Ravine Road over Ranson Drain carry?

About 3,074 vehicles per day (2007 count), of which roughly 4% are trucks.

How long is Ravine Road over Ranson Drain?

The structure is 24 ft (7.3 m) long with a longest span of 7 ft (2 m).

Who owns Ravine Road over Ranson Drain?

It is owned by the County Highway Agency.