US Bridges

Ten Curves RD H44 over Manistique River

Good

Schoolcraft County, Michigan · In Germfask · Structure no. 000000000009711

Built
2013
12 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
809
2015 count
Owner
County
County Highway Agency

About this bridge

Ten Curves RD H44 over Manistique River is a prestressed concrete box beam or girders - multiple carrying Ten Curves RD H44 over Manistique River in Schoolcraft County, Michigan. It was built in 2013, so it is 12 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 809 vehicles a day, roughly 1% of them trucks, projected to reach 950 by 2035. The structure is 100 ft (30.5 m) long and 28 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesTen Curves RD H44
CrossesManistique River
LocationIn Germfask
RouteCounty Highway 7558
Coordinates46.24696, -85.9244
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length100 ft (30.5 m)
Longest span98 ft (29.8 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic809 (2015)
Projected traffic950 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ten Curves RD H44 over Manistique River built?

It was built in 2013, making it 12 years old in 2025.

What condition is Ten Curves RD H44 over Manistique 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 June 2023.

How much traffic does Ten Curves RD H44 over Manistique River carry?

About 809 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Ten Curves RD H44 over Manistique River?

The structure is 100 ft (30.5 m) long with a longest span of 98 ft (29.8 m) and a deck 28 ft wide.

Who owns Ten Curves RD H44 over Manistique River?

It is owned by the County Highway Agency.