US Bridges

Cornell Road over N Branch Kalamazoo River

Fair

Jackson County, Michigan · 0.6 MI North of Concord · Structure no. 000000000004522

Built
1933
92 years old, rebuilt 2020
Condition
Fair
inspected November 2024
Type
Slab
Wood or Timber
Length
29 ft
1 main span
Daily traffic
250
2010 count
Owner
County
County Highway Agency

About this bridge

Cornell Road over N Branch Kalamazoo River is a wood or timber slab carrying Cornell Road over N Branch Kalamazoo River in Jackson County, Michigan. It was built in 1933 and reconstructed in 2020, so it is 92 years old, older 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 250 vehicles a day, projected to reach 500 by 2014. The structure is 29 ft (8.8 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCornell Road
CrossesN Branch Kalamazoo River
Location0.6 MI North of Concord
RouteCounty Highway 0
CountyJackson County
StateMichigan
Coordinates42.18878, -84.66135
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.6 US tons
Inventory rating69.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2010)
Projected traffic500 by 2014
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$450,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Cornell Road over N Branch Kalamazoo River built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2020.

What condition is Cornell Road over N Branch 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 November 2024.

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

About 250 vehicles per day (2010 count).

How long is Cornell Road over N Branch Kalamazoo River?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 25 ft wide.

Who owns Cornell Road over N Branch Kalamazoo River?

It is owned by the County Highway Agency.