US Bridges

Spring Street over N Br Kalamazoo River

Good

Jackson County, Michigan · In Concord 100FT So M60 · Structure no. 000000000004534

Built
1980
45 years old
Condition
Good
inspected June 2023
Type
Slab
Wood or Timber
Length
24 ft
1 main span
Daily traffic
240
2002 count
Owner
City
City or Municipal Highway Agency

About this bridge

Spring Street over N Br Kalamazoo River is a wood or timber slab carrying Spring Street over N Br Kalamazoo River in Jackson 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 240 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2014. The structure is 24 ft (7.4 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSpring Street
CrossesN Br Kalamazoo River
LocationIn Concord 100FT So M60
RouteCity Street 0
Coordinates42.17959, -84.64894
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating55 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span23 ft (7.1 m)
Deck width35 ft (10.8 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2002)
Projected traffic300 by 2014
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Spring Street over N Br Kalamazoo River built?

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

What condition is Spring Street over N Br Kalamazoo River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Spring Street over N Br Kalamazoo River carry?

About 240 vehicles per day (2002 count), of which roughly 10% are trucks.

How long is Spring Street over N Br Kalamazoo River?

The structure is 24 ft (7.4 m) long with a longest span of 23 ft (7.1 m) and a deck 35 ft wide.

Who owns Spring Street over N Br Kalamazoo River?

It is owned by the City or Municipal Highway Agency.