US Bridges

Chip Road over Kawkawlin River

Fair

Bay County, Michigan · 200 Ft E of Nine Mile RD · Structure no. 000000000000745

Built
2004
21 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
186
2004 count
Owner
County
County Highway Agency

About this bridge

Chip Road over Kawkawlin River is a prestressed concrete box beam or girders - multiple carrying Chip Road over Kawkawlin River in Bay County, Michigan. It was built in 2004, so it is 21 years old, younger 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 186 vehicles a day, roughly 10% of them trucks, projected to reach 230 by 2024. The structure is 50 ft (15.2 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesChip Road
CrossesKawkawlin River
Location200 Ft E of Nine Mile RD
RouteCounty Highway 0
Coordinates43.64678, -84.06893
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.9 US tons
Inventory rating52.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic186 (2004)
Projected traffic230 by 2024
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Chip Road over Kawkawlin River built?

It was built in 2004, making it 21 years old in 2025.

What condition is Chip Road over 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 Kawkawlin River carry?

About 186 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is Chip Road over Kawkawlin River?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 31 ft wide.

Who owns Chip Road over Kawkawlin River?

It is owned by the County Highway Agency.