Bridge Type
Main Span(s): Concrete [1] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 19.5 m = 64.0 ft
Main Spans: 1 at 17.2 m = 56.4 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 10.7 m = 35.1 ft (2 Lanes) and Out-To-Out: 12.3 m = 40.4 ft for a 10.7 m = 35.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Onota [60820]: Alger County [003], Michigan [26]
Owned by State Highway Agency [01], DOT District: 1
0.4 MI E OF MARQUETTE COL
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 57 metric ton = 62.7 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 34 metric ton = 37.4 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 1999 [1099] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 8.9 km = 5.5 mi
Traffic
ADT: 3093 (2007) and Trucks: 10%
Future ADT: 4926 (In 2018
)
