US Bridges

Townline 14 Road over Kawkawlin River

Fair

Bay County, Michigan · 1000 Feet E of 9 MI RD · Structure no. 000000000000717

Built
1970
55 years old
Condition
Fair
inspected May 2023
Type
Slab
Wood or Timber
Length
40 ft
2 main spans
Daily traffic
66
2000 count
Owner
County
County Highway Agency

About this bridge

Townline 14 Road over Kawkawlin River is a wood or timber slab carrying Townline 14 Road over Kawkawlin River in Bay County, Michigan. It was built in 1970, so it is 55 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.

It carries about 66 vehicles a day, roughly 5% of them trucks, projected to reach 80 by 2020. The structure is 40 ft (12.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTownline 14 Road
CrossesKawkawlin River
Location1000 Feet E of 9 MI RD
RouteCounty Highway 0
CountyBay County
StateMichigan
Coordinates43.65356, -84.0645
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span19 ft (5.7 m)
Deck width40 ft (12.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66 (2000)
Projected traffic80 by 2020
Trucks5%
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 Townline 14 Road over Kawkawlin River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Townline 14 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 2023.

How much traffic does Townline 14 Road over Kawkawlin River carry?

About 66 vehicles per day (2000 count), of which roughly 5% are trucks.

How long is Townline 14 Road over Kawkawlin River?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.7 m) and a deck 40 ft wide.

Who owns Townline 14 Road over Kawkawlin River?

It is owned by the County Highway Agency.