US Bridges

Anchor Bay Drive over Unnamed Canal

Good

St. Clair County, Michigan · Sec 36 Clay Twp · Structure no. 000000000010029

Built
1984
41 years old, rebuilt 2019
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
1,655
1994 count
Owner
County
County Highway Agency

About this bridge

Anchor Bay Drive over Unnamed Canal is a steel stringer/multi-beam or girder carrying Anchor Bay Drive over Unnamed Canal in St. Clair County, Michigan. It was built in 1984 and reconstructed in 2019, so it is 41 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 1,655 vehicles a day, roughly 3% of them trucks, projected to reach 1,700 by 2014. The structure is 57 ft (17.4 m) long and 27 ft wide. If it were closed, the detour would be 124.9 mi (201 km).

Location

Open in Google Maps
CarriesAnchor Bay Drive
CrossesUnnamed Canal
LocationSec 36 Clay Twp
RouteCounty Highway 0
CountySt. Clair County
StateMichigan
Coordinates42.65132, -82.62376
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating76.4 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadGreater than HL 93
Structure length57 ft (17.4 m)
Longest span54 ft (16.6 m)
Deck width27 ft (8.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,655 (1994)
Projected traffic1,700 by 2014
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.9 mi (201 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$12,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Anchor Bay Drive over Unnamed Canal built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2019.

What condition is Anchor Bay 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 April 2024.

How much traffic does Anchor Bay Drive over Unnamed Canal carry?

About 1,655 vehicles per day (1994 count), of which roughly 3% are trucks.

How long is Anchor Bay Drive over Unnamed Canal?

The structure is 57 ft (17.4 m) long with a longest span of 54 ft (16.6 m) and a deck 27 ft wide.

Who owns Anchor Bay Drive over Unnamed Canal?

It is owned by the County Highway Agency.