US Bridges

Kilgore Road over Black Creek Drain

Fair

Sanilac County, Michigan · Sec 27-28 Fremont Twp · Structure no. 000000000009626

Built
1920
105 years old, rebuilt 1940
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
170
2010 count
Owner
County
County Highway Agency

About this bridge

Kilgore Road over Black Creek Drain is a steel stringer/multi-beam or girder carrying Kilgore Road over Black Creek Drain in Sanilac County, Michigan. It was built in 1920 and reconstructed in 1940, so it is 105 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 6 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 170 vehicles a day, roughly 10% of them trucks, projected to reach 310 by 2030. The structure is 34 ft (10.4 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKilgore Road
CrossesBlack Creek Drain
LocationSec 27-28 Fremont Twp
RouteCounty Highway 0
Coordinates43.18463, -82.70386
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating87.5 US tons
Inventory rating52.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.4 m)
Longest span32 ft (9.9 m)
Deck width22 ft (6.8 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2010)
Projected traffic310 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 Kilgore Road over Black Creek Drain built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1940.

What condition is Kilgore Road over Black Creek 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 June 2024.

How much traffic does Kilgore Road over Black Creek Drain carry?

About 170 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Kilgore Road over Black Creek Drain?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.9 m) and a deck 22 ft wide.

Who owns Kilgore Road over Black Creek Drain?

It is owned by the County Highway Agency.