US Bridges

South Main Street over Mill Creek

Good

St. Clair County, Michigan · City of Yale · Structure no. 000000000010260

Built
2012
13 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
887
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Main Street over Mill Creek is a prestressed concrete box beam or girders - multiple carrying South Main Street over Mill Creek in St. Clair County, Michigan. It was built in 2012, so it is 13 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 887 vehicles a day, roughly 3% of them trucks, projected to reach 1,064 by 2031. The structure is 62 ft (18.9 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSouth Main Street
CrossesMill Creek
LocationCity of Yale
RouteCity Street 0
Coordinates43.12491, -82.79829
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 rating107.1 US tons
Inventory rating84.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length62 ft (18.9 m)
Longest span60 ft (18.3 m)
Deck width35 ft (10.6 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic887 (2011)
Projected traffic1,064 by 2031
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 South Main Street over Mill Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is South Main Street over Mill 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 September 2023.

How much traffic does South Main Street over Mill Creek carry?

About 887 vehicles per day (2011 count), of which roughly 3% are trucks.

How long is South Main Street over Mill Creek?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.

Who owns South Main Street over Mill Creek?

It is owned by the City or Municipal Highway Agency.