US Bridges

M-64 over W Br Big Presque Isle Rv

Fair

Gogebic County, Michigan · 3.2 MI S of Marenisco · Structure no. 000000000002966

Built
1928
97 years old
Condition
Fair
inspected May 2024
Type
Girder and Floorbeam System
Concrete
Length
60 ft
1 main span
Daily traffic
636
2007 count
Owner
State
State Highway Agency

About this bridge

M-64 over W Br Big Presque Isle Rv is a concrete girder and floorbeam system carrying M-64 over W Br Big Presque Isle Rv in Gogebic County, Michigan. It was built in 1928, so it is 97 years old, older 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 5 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 636 vehicles a day, roughly 9% of them trucks, projected to reach 235 by 2018. The structure is 60 ft (18.3 m) long and 29 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

Location

Open in Google Maps
CarriesM-64
CrossesW Br Big Presque Isle Rv
Location3.2 MI S of Marenisco
RouteState Highway 64
CountyGogebic County
StateMichigan
Coordinates46.34498, -89.71018
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.6 US tons
Inventory rating38.6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length60 ft (18.3 m)
Longest span58 ft (17.8 m)
Deck width29 ft (8.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic636 (2007)
Projected traffic235 by 2018
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$278,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M-64 over W Br Big Presque Isle Rv built?

It was built in 1928, making it 97 years old in 2025.

What condition is M-64 over W Br Big Presque Isle Rv 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 May 2024.

How much traffic does M-64 over W Br Big Presque Isle Rv carry?

About 636 vehicles per day (2007 count), of which roughly 9% are trucks.

How long is M-64 over W Br Big Presque Isle Rv?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.8 m) and a deck 29 ft wide.

Who owns M-64 over W Br Big Presque Isle Rv?

It is owned by the State Highway Agency.