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Nearby Bridges in NBI 2021: 1


M-72 over W BR BIG CREEK (Route: 72)
Num:8659x
Open: no restriction [A]
Built: 1957, 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] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 10.6 m = 34.8 ft
Main Spans: 1 at 10.6 m = 34.8 ft
Approach Spans: 0
Skew: 40
Width, Roadway: 11.6 m = 38.1 ft (2 Lanes) and Out-To-Out: 16 m = 52.5 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Big Creek [08220]: Oscoda County [135], Michigan [26]
Owned by State Highway Agency [01], DOT District: 2
4.1 MI E OF CRAWFORD COL
Condition
Deck: Very Good [8]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 65.1 metric ton = 71.6 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 39.2 metric ton = 43.1 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Better than present minimum criteria [7]
Waterway: Better than present minimum criteria [7] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1 km = 0.6 mi
Traffic
ADT: 2064 (2007) and Trucks: 9%
Future ADT: 2843 (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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