Bridge Type
Main Span(s): Concrete continuous [2] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Epoxy Overlay [5]
Bridge Dimensions
Length: 89.6 m = 294.0 ft
Main Spans: 4 at 28 m = 91.9 ft
Approach Spans: 0
Skew: 39
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 9.5 m = 31.2 ft for a 10.9 m = 35.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Hebron [37480]: Cheboygan County [031], Michigan [26]
Owned by State Highway Agency [01], DOT District: 2
4.4 MI S OF US-31
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 60.9 metric ton = 67.0 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 36.6 metric ton = 40.3 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: Equal to present minimum criteria [6]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: April 1999 [499] and Frequency: 24
Future Work
Work Needed: Bridge deck replacement with only incidental widening. [37]
Bridge Detour: 2.1 km = 1.3 mi
Traffic
ADT: 40 (1997) and Trucks: 3%
Future ADT: 65 (In 2007
)
