US Bridges

M-64 over Dreiss Creek

Good

Ontonagon County, Michigan · 2.7 MI SW of US-45 · Structure no. 000000000008478

Built
1945
80 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
2,117
2007 count
Owner
State
State Highway Agency

About this bridge

M-64 over Dreiss Creek is a steel stringer/multi-beam or girder carrying M-64 over Dreiss Creek in Ontonagon County, Michigan. It was built in 1945, so it is 80 years old, older 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 2,117 vehicles a day, roughly 5% of them trucks, projected to reach 2,577 by 2018. The structure is 30 ft (9.1 m) long and 43 ft wide. If it were closed, the detour would be 55.3 mi (89 km).

Location

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CarriesM-64
CrossesDreiss Creek
Location2.7 MI SW of US-45
RouteState Highway 64
CountyOntonagon County
StateMichigan
Coordinates46.85629, -89.36853
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 alignment6: Equal to present minimum criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.7 m)
Deck width43 ft (13 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,117 (2007)
Projected traffic2,577 by 2018
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.3 mi (89 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 M-64 over Dreiss Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is M-64 over Dreiss Creek 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 August 2023.

How much traffic does M-64 over Dreiss Creek carry?

About 2,117 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is M-64 over Dreiss Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.7 m) and a deck 43 ft wide.

Who owns M-64 over Dreiss Creek?

It is owned by the State Highway Agency.