US Bridges

Wildcat Road over Br of Birch Creek

Good

Sanilac County, Michigan · Sec 27-28 Worth Twp · Structure no. 000000000012611

Built
2000
25 years old
Condition
Good
inspected June 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
21 ft
1 main span
Daily traffic
2,060
2010 count
Owner
County
County Highway Agency

About this bridge

Wildcat Road over Br of Birch Creek is a aluminum, wrought iron, or cast iron culvert carrying Wildcat Road over Br of Birch Creek in Sanilac County, Michigan. It was built in 2000, so it is 25 years old, younger 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 2,060 vehicles a day, roughly 5% of them trucks, projected to reach 3,720 by 2030. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesWildcat Road
CrossesBr of Birch Creek
LocationSec 27-28 Worth Twp
RouteCounty Highway 7485
CountySanilac County
StateMichigan
Coordinates43.18283, -82.58516
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,060 (2010)
Projected traffic3,720 by 2030
Trucks5%
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 Wildcat Road over Br of Birch Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Wildcat Road over Br of Birch 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 June 2024.

How much traffic does Wildcat Road over Br of Birch Creek carry?

About 2,060 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Wildcat Road over Br of Birch Creek?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m).

Who owns Wildcat Road over Br of Birch Creek?

It is owned by the County Highway Agency.