US Bridges

Flamingo Drive over Unnamed Canal

Good

St. Clair County, Michigan · Sec 36 Clay Twp · Structure no. 000000000010143

Built
2021
4 years old
Condition
Good
inspected December 2023
Type
Slab
Wood or Timber
Length
70 ft
3 main spans
Daily traffic
569
2020 count
Owner
County
County Highway Agency

About this bridge

Flamingo Drive over Unnamed Canal is a wood or timber slab carrying Flamingo Drive over Unnamed Canal in St. Clair County, Michigan. It was built in 2021, so it is 4 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 569 vehicles a day, roughly 7% of them trucks, projected to reach 694 by 2040. The structure is 70 ft (21.3 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesFlamingo Drive
CrossesUnnamed Canal
LocationSec 36 Clay Twp
RouteCounty Highway 0
CountySt. Clair County
StateMichigan
Coordinates42.63676, -82.61715
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.5 US tons
Inventory rating60 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadGreater than HL 93
Structure length70 ft (21.3 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic569 (2020)
Projected traffic694 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$108.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Flamingo Drive over Unnamed Canal built?

It was built in 2021, making it 4 years old in 2025.

What condition is Flamingo Drive over Unnamed Canal 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 December 2023.

How much traffic does Flamingo Drive over Unnamed Canal carry?

About 569 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Flamingo Drive over Unnamed Canal?

The structure is 70 ft (21.3 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns Flamingo Drive over Unnamed Canal?

It is owned by the County Highway Agency.