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Nearby Bridges in NBI 2021: 1


M-64 over W BR BIG PRESQUE ISLE RV (Route: 64)
Num:2966x
Open: no restriction [A]
Built: 1928, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

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Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 18.2 m = 59.7 ft
Main Spans: 1 at 18.2 m = 59.7 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7 m = 23.0 ft (2 Lanes) and Out-To-Out: 8.1 m = 26.6 ft for a 10.1 m = 33.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Marenisco [51560]: Gogebic County [053], Michigan [26]
Owned by State Highway Agency [01], DOT District: 1
3.2 MI S OF MARENISCO
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 59.3 metric ton = 65.2 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 35.6 metric ton = 39.2 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 9.7 km = 6.0 mi
Traffic
ADT: 636 (2007) and Trucks: 9%
Future ADT: 235 (In 2018 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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