US Bridges

64th Street over M Br Pere Marquette Riv.

PoorPosted for load

Lake County, Michigan · 2 MI S 0.5 M W of Nirvana · Structure no. 000000000005296

Built
1909
116 years old, rebuilt 1994
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
34
2007 count
Owner
County
County Highway Agency

About this bridge

64th Street over M Br Pere Marquette Riv. is a steel stringer/multi-beam or girder carrying 64th Street over M Br Pere Marquette Riv. in Lake County, Michigan. It was built in 1909 and reconstructed in 1994, so it is 116 years old, older 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. Its operating status is: posted for load restriction.

It carries about 34 vehicles a day, projected to reach 60 by 2027. The structure is 36 ft (10.9 m) long and 20 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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Carries64th Street
CrossesM Br Pere Marquette Riv.
Location2 MI S 0.5 M W of Nirvana
RouteCounty Highway 0
CountyLake County
StateMichigan
Coordinates43.87323, -85.72386
Functional classRural Local

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (10.9 m)
Longest span36 ft (10.9 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2007)
Projected traffic60 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 64th Street over M Br Pere Marquette Riv. built?

It was built in 1909, making it 116 years old in 2025. It was reconstructed in 1994.

What condition is 64th Street over M Br Pere Marquette Riv. 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 April 2024.

How much traffic does 64th Street over M Br Pere Marquette Riv. carry?

About 34 vehicles per day (2007 count).

How long is 64th Street over M Br Pere Marquette Riv.?

The structure is 36 ft (10.9 m) long with a longest span of 36 ft (10.9 m) and a deck 20 ft wide.

Who owns 64th Street over M Br Pere Marquette Riv.?

It is owned by the County Highway Agency.