US Bridges

Kenneth Road over N Branch Carp River

Fair

Mackinac County, Michigan · 3 M S & 5 M E of Ozark · Structure no. 000000000005990

Built
1949
76 years old, rebuilt 1979
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
29 ft
1 main span
Daily traffic
70
2015 count
Owner
County
County Highway Agency

About this bridge

Kenneth Road over N Branch Carp River is a wood or timber stringer/multi-beam or girder carrying Kenneth Road over N Branch Carp River in Mackinac County, Michigan. It was built in 1949 and reconstructed in 1979, so it is 76 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2035. The structure is 29 ft (8.8 m) long and 16 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesKenneth Road
CrossesN Branch Carp River
Location3 M S & 5 M E of Ozark
RouteCounty Highway 0
Coordinates46.10048, -84.85249
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating38.6 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2015)
Projected traffic90 by 2035
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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$155,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kenneth Road over N Branch Carp River built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1979.

What condition is Kenneth Road over N Branch Carp 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 October 2023.

How much traffic does Kenneth Road over N Branch Carp River carry?

About 70 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Kenneth Road over N Branch Carp River?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 16 ft wide.

Who owns Kenneth Road over N Branch Carp River?

It is owned by the County Highway Agency.