US Bridges

Rondo Road over Sturgeon River

Fair

Cheboygan County, Michigan · Between Sec. 24&25 T34R3W · Structure no. 000000000001541

Built
1979
46 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
640
2005 count
Owner
County
County Highway Agency

About this bridge

Rondo Road over Sturgeon River is a prestressed concrete box beam or girders - multiple carrying Rondo Road over Sturgeon River in Cheboygan County, Michigan. It was built in 1979, so it is 46 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 640 vehicles a day, projected to reach 1,100 by 2025. The structure is 78 ft (23.7 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesRondo Road
CrossesSturgeon River
LocationBetween Sec. 24&25 T34R3W
RouteCounty Highway 1622
CountyCheboygan County
StateMichigan
Coordinates45.31681, -84.62238
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating73.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length78 ft (23.7 m)
Longest span78 ft (23.7 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2005)
Projected traffic1,100 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Rondo Road over Sturgeon River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Rondo Road 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 July 2023.

How much traffic does Rondo Road over Sturgeon River carry?

About 640 vehicles per day (2005 count).

How long is Rondo Road over Sturgeon River?

The structure is 78 ft (23.7 m) long with a longest span of 78 ft (23.7 m) and a deck 30 ft wide.

Who owns Rondo Road over Sturgeon River?

It is owned by the County Highway Agency.