US Bridges

Swaffer Road over Colts Creek

Fair

Tuscola County, Michigan · Sec 32 Tuscola Twp · Structure no. 000000000010642

Built
1979
46 years old
Condition
Fair
inspected June 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
250
2009 count
Owner
County
County Highway Agency

About this bridge

Swaffer Road over Colts Creek is a steel culvert carrying Swaffer Road over Colts Creek in Tuscola County, Michigan. It was built in 1979, so it is 46 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 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 250 vehicles a day, projected to reach 450 by 2029. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSwaffer Road
CrossesColts Creek
LocationSec 32 Tuscola Twp
RouteCounty Highway 0
CountyTuscola County
StateMichigan
Coordinates43.30682, -83.67683
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length24 ft (7.3 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2009)
Projected traffic450 by 2029
Trucks0%
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 Swaffer Road over Colts Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Swaffer Road over Colts Creek 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 June 2023.

How much traffic does Swaffer Road over Colts Creek carry?

About 250 vehicles per day (2009 count).

How long is Swaffer Road over Colts Creek?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3.2 m).

Who owns Swaffer Road over Colts Creek?

It is owned by the County Highway Agency.