US Bridges

Stambaugh Road over Sparling Drain Extension

Fair

Huron County, Michigan · Sec 32-33 Bingham Twp · Structure no. 000000000003558

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
40
2009 count
Owner
County
County Highway Agency

About this bridge

Stambaugh Road over Sparling Drain Extension is a concrete culvert carrying Stambaugh Road over Sparling Drain Extension in Huron County, Michigan. It was built in 1987, so it is 38 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 40 vehicles a day, projected to reach 75 by 2029. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesStambaugh Road
CrossesSparling Drain Extension
LocationSec 32-33 Bingham Twp
RouteCounty Highway 0
CountyHuron County
StateMichigan
Coordinates43.68745, -82.95863
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2009)
Projected traffic75 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Stambaugh Road over Sparling Drain Extension built?

It was built in 1987, making it 38 years old in 2025.

What condition is Stambaugh Road over Sparling Drain Extension 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 September 2023.

How much traffic does Stambaugh Road over Sparling Drain Extension carry?

About 40 vehicles per day (2009 count).

How long is Stambaugh Road over Sparling Drain Extension?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m).

Who owns Stambaugh Road over Sparling Drain Extension?

It is owned by the County Highway Agency.