US Bridges

O Avenue over Amtrak/Conrail RR

Fair

Kalamazoo County, Michigan · 4.3MI W 2MI S of Oshtemo · Structure no. 000000000004657

Built
1992
33 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
147 ft
3 main spans
Daily traffic
510
2006 count
Owner
County
County Highway Agency

About this bridge

O Avenue over Amtrak/Conrail RR is a prestressed concrete box beam or girders - multiple carrying O Avenue over Amtrak/Conrail RR in Kalamazoo County, Michigan. It was built in 1992, so it is 33 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 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 510 vehicles a day, roughly 3% of them trucks, projected to reach 750 by 2024. The structure is 147 ft (44.7 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesO Avenue
CrossesAmtrak/Conrail RR
Location4.3MI W 2MI S of Oshtemo
RouteCounty Highway 0
CountyKalamazoo County
StateMichigan
Coordinates42.23006, -85.75908
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length147 ft (44.7 m)
Longest span47 ft (14.4 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic510 (2006)
Projected traffic750 by 2024
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was O Avenue over Amtrak/Conrail RR built?

It was built in 1992, making it 33 years old in 2025.

What condition is O Avenue over Amtrak/Conrail RR 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 March 2024.

How much traffic does O Avenue over Amtrak/Conrail RR carry?

About 510 vehicles per day (2006 count), of which roughly 3% are trucks.

How long is O Avenue over Amtrak/Conrail RR?

The structure is 147 ft (44.7 m) long with a longest span of 47 ft (14.4 m) and a deck 34 ft wide.

Who owns O Avenue over Amtrak/Conrail RR?

It is owned by the County Highway Agency.