US Bridges

Kobs Road over Dead Creek

Good

Iosco County, Michigan · 4200 Ft S of Meadow Road · Structure no. 000000000004158

Built
2001
24 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
300
2006 count
Owner
County
County Highway Agency

About this bridge

Kobs Road over Dead Creek is a prestressed concrete box beam or girders - multiple carrying Kobs Road over Dead Creek in Iosco County, Michigan. It was built in 2001, so it is 24 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 530 by 2006. The structure is 46 ft (14 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKobs Road
CrossesDead Creek
Location4200 Ft S of Meadow Road
RouteCounty Highway 0
Coordinates44.25393, -83.56253
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2006)
Projected traffic530 by 2006
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Kobs Road over Dead Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Kobs Road over Dead Creek 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 2024.

How much traffic does Kobs Road over Dead Creek carry?

About 300 vehicles per day (2006 count), of which roughly 10% are trucks.

How long is Kobs Road over Dead Creek?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 34 ft wide.

Who owns Kobs Road over Dead Creek?

It is owned by the County Highway Agency.