US Bridges

East Main Street over Sturgeon River

Fair

Cheboygan County, Michigan · In Wolverine · Structure no. 000000000001561

Built
1987
38 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
800
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

East Main Street over Sturgeon River is a prestressed concrete box beam or girders - multiple carrying East Main Street over Sturgeon River in Cheboygan County, Michigan. It was built in 1987, so it is 38 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 800 vehicles a day, projected to reach 1,100 by 2037. The structure is 40 ft (12.2 m) long and 45 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesEast Main Street
CrossesSturgeon River
LocationIn Wolverine
RouteCity Street 1641
Coordinates45.27315, -84.60061
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width45 ft (13.7 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2017)
Projected traffic1,100 by 2037
Trucks0%
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 East Main Street over Sturgeon River built?

It was built in 1987, making it 38 years old in 2025.

What condition is East Main Street over Sturgeon River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does East Main Street over Sturgeon River carry?

About 800 vehicles per day (2017 count).

How long is East Main Street over Sturgeon River?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 45 ft wide.

Who owns East Main Street over Sturgeon River?

It is owned by the City or Municipal Highway Agency.