US Bridges

Old 27 over Sturgeon River

Poor

Cheboygan County, Michigan · In Sec 14 T33NR3W · Structure no. 000000000001532

Built
1991
34 years old
Condition
Poor
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
1,260
2005 count
Owner
County
County Highway Agency

About this bridge

Old 27 over Sturgeon River is a prestressed concrete box beam or girders - multiple carrying Old 27 over Sturgeon River in Cheboygan County, Michigan. It was built in 1991, so it is 34 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,260 vehicles a day, projected to reach 2,300 by 2025. The structure is 45 ft (13.7 m) long and 43 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesOld 27
CrossesSturgeon River
LocationIn Sec 14 T33NR3W
RouteCounty Highway 1619
Coordinates45.25522, -84.63265
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating61.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width43 ft (13.2 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,260 (2005)
Projected traffic2,300 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Old 27 over Sturgeon River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Old 27 over Sturgeon River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Old 27 over Sturgeon River carry?

About 1,260 vehicles per day (2005 count).

How long is Old 27 over Sturgeon River?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 43 ft wide.

Who owns Old 27 over Sturgeon River?

It is owned by the County Highway Agency.