US Bridges

Warner Road over N Branch Kalamazoo River

Good

Jackson County, Michigan · 1.0 MI North of Concord · Structure no. 000000000004523

Built
2014
11 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
150
2014 count
Owner
County
County Highway Agency

About this bridge

Warner Road over N Branch Kalamazoo River is a prestressed concrete box beam or girders - multiple carrying Warner Road over N Branch Kalamazoo River in Jackson County, Michigan. It was built in 2014, so it is 11 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 150 vehicles a day, projected to reach 200 by 2034. The structure is 48 ft (14.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWarner Road
CrossesN Branch Kalamazoo River
Location1.0 MI North of Concord
RouteCounty Highway 0
Coordinates42.19609, -84.65889
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating59.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length48 ft (14.6 m)
Longest span47 ft (14.2 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2014)
Projected traffic200 by 2034
Trucks0%
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

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 Warner Road over N Branch Kalamazoo River built?

It was built in 2014, making it 11 years old in 2025.

What condition is Warner Road over N Branch 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 April 2024.

How much traffic does Warner Road over N Branch Kalamazoo River carry?

About 150 vehicles per day (2014 count).

How long is Warner Road over N Branch Kalamazoo River?

The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.2 m) and a deck 32 ft wide.

Who owns Warner Road over N Branch Kalamazoo River?

It is owned by the County Highway Agency.