US Bridges

Townline 16 Road over Johnson Creek

Good

Bay County, Michigan · 0.26 MI W of M-13 · Structure no. 000000000013982

Built
1972
53 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
50
2017 count
Owner
County
County Highway Agency

About this bridge

Townline 16 Road over Johnson Creek is a concrete culvert carrying Townline 16 Road over Johnson Creek in Bay County, Michigan. It was built in 1972, so it is 53 years old, older 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 50 vehicles a day, projected to reach 100 by 2037. The structure is 21 ft (6.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTownline 16 Road
CrossesJohnson Creek
Location0.26 MI W of M-13
RouteCounty Highway 0
Coordinates43.825, -83.97219
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2017)
Projected traffic100 by 2037
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 16 Road over Johnson Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Townline 16 Road over Johnson 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 May 2023.

How much traffic does Townline 16 Road over Johnson Creek carry?

About 50 vehicles per day (2017 count).

How long is Townline 16 Road over Johnson Creek?

The structure is 21 ft (6.5 m) long with a longest span of 10 ft (3 m).

Who owns Townline 16 Road over Johnson Creek?

It is owned by the County Highway Agency.