US Bridges

Straits Hwy(old 27 over Indian River

Good

Cheboygan County, Michigan · Sec 24 T35N R3W · Structure no. 000000000001533

Built
2012
13 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
7,047
2011 count
Owner
County
County Highway Agency

About this bridge

Straits Hwy(old 27 over Indian River is a prestressed concrete box beam or girders - multiple carrying Straits Hwy(old 27 over Indian River in Cheboygan 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 7,047 vehicles a day, projected to reach 9,491 by 2031. The structure is 130 ft (39.6 m) long and 50 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesStraits Hwy(old 27
CrossesIndian River
LocationSec 24 T35N R3W
RouteCounty Highway 1625
Coordinates45.41331, -84.61146
Functional classRural Minor Arterial

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 inspectionJuly 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 alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length130 ft (39.6 m)
Longest span128 ft (38.9 m)
Deck width50 ft (15.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,047 (2011)
Projected traffic9,491 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Straits Hwy(old 27 over Indian River built?

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

What condition is Straits Hwy(old 27 over Indian River 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 July 2023.

How much traffic does Straits Hwy(old 27 over Indian River carry?

About 7,047 vehicles per day (2011 count).

How long is Straits Hwy(old 27 over Indian River?

The structure is 130 ft (39.6 m) long with a longest span of 128 ft (38.9 m) and a deck 50 ft wide.

Who owns Straits Hwy(old 27 over Indian River?

It is owned by the County Highway Agency.