US Bridges

Eighth Street over AMTRAK RR

Fair

Kalamazoo County, Michigan · 1.4MI N 0.5MI W / Oshtemo · Structure no. 000000000004651

Built
1980
45 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
110 ft
3 main spans
Daily traffic
2,884
2006 count
Owner
County
County Highway Agency

About this bridge

Eighth Street over AMTRAK RR is a prestressed concrete box beam or girders - multiple carrying Eighth Street over AMTRAK RR in Kalamazoo County, Michigan. It was built in 1980, so it is 45 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 2,884 vehicles a day, roughly 3% of them trucks, projected to reach 3,942 by 2027. The structure is 110 ft (33.5 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesEighth Street
CrossesAMTRAK RR
Location1.4MI N 0.5MI W / Oshtemo
RouteCounty Highway 0
CountyKalamazoo County
StateMichigan
Coordinates42.27894, -85.68726
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating54.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span38 ft (11.6 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,884 (2006)
Projected traffic3,942 by 2027
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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$385,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Eighth Street over AMTRAK RR built?

It was built in 1980, making it 45 years old in 2025.

What condition is Eighth Street over AMTRAK 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 2023.

How much traffic does Eighth Street over AMTRAK RR carry?

About 2,884 vehicles per day (2006 count), of which roughly 3% are trucks.

How long is Eighth Street over AMTRAK RR?

The structure is 110 ft (33.5 m) long with a longest span of 38 ft (11.6 m) and a deck 34 ft wide.

Who owns Eighth Street over AMTRAK RR?

It is owned by the County Highway Agency.