US Bridges

Capac Road over Capac Drain

Good

St. Clair County, Michigan · 340 Ft S of Donald Road · Structure no. 000000000013871

Built
2015
10 years old
Condition
Good
inspected November 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
21 ft
1 main span
Daily traffic
7,208
2014 count
Owner
County
County Highway Agency

About this bridge

Capac Road over Capac Drain is a aluminum, wrought iron, or cast iron culvert carrying Capac Road over Capac Drain in St. Clair County, Michigan. It was built in 2015, so it is 10 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 7,208 vehicles a day, roughly 19% of them trucks, projected to reach 10,753 by 2034. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCapac Road
CrossesCapac Drain
Location340 Ft S of Donald Road
RouteCounty Highway 0
Coordinates42.99708, -82.92811
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 protection8 Very GoodNo problems noted.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length21 ft (6.3 m)
Longest span21 ft (6.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,208 (2014)
Projected traffic10,753 by 2034
Trucks19%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Capac Road over Capac Drain built?

It was built in 2015, making it 10 years old in 2025.

What condition is Capac Road over Capac Drain 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 Capac Road over Capac Drain carry?

About 7,208 vehicles per day (2014 count), of which roughly 19% are trucks.

How long is Capac Road over Capac Drain?

The structure is 21 ft (6.3 m) long with a longest span of 21 ft (6.3 m).

Who owns Capac Road over Capac Drain?

It is owned by the County Highway Agency.