US Bridges

Chip Road over N Br Kawkawlin River

FairPosted for load

Bay County, Michigan · 0.5 MI SW Old Beaver RD · Structure no. 000000000000677

Built
1930
95 years old, rebuilt 1959
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
60 ft
1 main span
Daily traffic
438
1995 count
Owner
County
County Highway Agency

About this bridge

Chip Road over N Br Kawkawlin River is a wood or timber stringer/multi-beam or girder carrying Chip Road over N Br Kawkawlin River in Bay County, Michigan. It was built in 1930 and reconstructed in 1959, so it is 95 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 438 vehicles a day, roughly 7% of them trucks, projected to reach 756 by 2018. The structure is 60 ft (18.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesChip Road
CrossesN Br Kawkawlin River
Location0.5 MI SW Old Beaver RD
RouteCounty Highway 0
Coordinates43.64899, -83.95805
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating39.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length60 ft (18.2 m)
Longest span53 ft (16.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic438 (1995)
Projected traffic756 by 2018
Trucks7%
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$280,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Chip Road over N Br Kawkawlin River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1959.

What condition is Chip Road over N Br Kawkawlin 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 May 2024.

How much traffic does Chip Road over N Br Kawkawlin River carry?

About 438 vehicles per day (1995 count), of which roughly 7% are trucks.

How long is Chip Road over N Br Kawkawlin River?

The structure is 60 ft (18.2 m) long with a longest span of 53 ft (16.1 m) and a deck 26 ft wide.

Who owns Chip Road over N Br Kawkawlin River?

It is owned by the County Highway Agency.