US Bridges

Main Street over Smiths Creek

Good

St. Clair County, Michigan · Sec. 31 Kimball Twp. · Structure no. 000000000010104

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
34 ft
1 main span
Daily traffic
1,145
2009 count
Owner
County
County Highway Agency

About this bridge

Main Street over Smiths Creek is a aluminum, wrought iron, or cast iron culvert carrying Main Street over Smiths Creek in St. Clair County, Michigan. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,145 vehicles a day, roughly 6% of them trucks, projected to reach 1,695 by 2029. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMain Street
CrossesSmiths Creek
LocationSec. 31 Kimball Twp.
RouteCounty Highway 7759
CountySt. Clair County
StateMichigan
Coordinates42.91147, -82.60594
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.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,145 (2009)
Projected traffic1,695 by 2029
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$584,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over Smiths Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is Main Street over Smiths 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 November 2023.

How much traffic does Main Street over Smiths Creek carry?

About 1,145 vehicles per day (2009 count), of which roughly 6% are trucks.

How long is Main Street over Smiths Creek?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m).

Who owns Main Street over Smiths Creek?

It is owned by the County Highway Agency.