US Bridges

Eddy Road over Dwight Drain

Fair

Sanilac County, Michigan · Sec 27-34 Custer Twp · Structure no. 000000000009581

Built
1983
42 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
150
2010 count
Owner
County
County Highway Agency

About this bridge

Eddy Road over Dwight Drain is a steel culvert carrying Eddy Road over Dwight Drain in Sanilac County, Michigan. It was built in 1983, so it is 42 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 150 vehicles a day, roughly 10% of them trucks, projected to reach 270 by 2030. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesEddy Road
CrossesDwight Drain
LocationSec 27-34 Custer Twp
RouteCounty Highway 0
CountySanilac County
StateMichigan
Coordinates43.43655, -82.80071
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating60.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length28 ft (8.5 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2010)
Projected traffic270 by 2030
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 Eddy Road over Dwight Drain built?

It was built in 1983, making it 42 years old in 2025.

What condition is Eddy Road over Dwight Drain 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 July 2024.

How much traffic does Eddy Road over Dwight Drain carry?

About 150 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Eddy Road over Dwight Drain?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (3.9 m).

Who owns Eddy Road over Dwight Drain?

It is owned by the County Highway Agency.