US Bridges

East Cass Street over Kalamazoo River

Fair

Calhoun County, Michigan · One Blk East of M-99 · Structure no. 000000000001391

Built
1996
29 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
963
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

East Cass Street over Kalamazoo River is a prestressed concrete box beam or girders - multiple carrying East Cass Street over Kalamazoo River in Calhoun County, Michigan. It was built in 1996, so it is 29 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 963 vehicles a day, roughly 4% of them trucks, projected to reach 1,297 by 2042. The structure is 156 ft (47.5 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEast Cass Street
CrossesKalamazoo River
LocationOne Blk East of M-99
RouteCity Street 0
Coordinates42.24528, -84.75196
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length156 ft (47.5 m)
Longest span52 ft (15.8 m)
Deck width53 ft (16.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic963 (2022)
Projected traffic1,297 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 East Cass Street over Kalamazoo River built?

It was built in 1996, making it 29 years old in 2025.

What condition is East Cass Street over Kalamazoo River 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 August 2024.

How much traffic does East Cass Street over Kalamazoo River carry?

About 963 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is East Cass Street over Kalamazoo River?

The structure is 156 ft (47.5 m) long with a longest span of 52 ft (15.8 m) and a deck 53 ft wide.

Who owns East Cass Street over Kalamazoo River?

It is owned by the City or Municipal Highway Agency.