Bridge Type
Main Span(s): Steel [3] Arch - Deck [11]
Approach Span(s): Concrete [1] Slab [01]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 58.8 m = 192.9 ft
Main Spans: 1 at 45.7 m = 149.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 10.7 m = 35.1 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
Interior [40760]: Ontonagon County [131], Michigan [26]
Owned by State Highway Agency [01], DOT District: 1
5.0 MI W OF HOUGHTON COL
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 78.6 metric ton = 86.5 tons (Load Factor(LF) [1])
Inventory: 47 metric ton = 51.7 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 foundations (including piles) on dry land well above flood water elevations. [9]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed: Bridge deck replacement with only incidental widening. [37]
Bridge Detour: 4.8 km = 3.0 mi
Traffic
ADT: 2303 (2007) and Trucks: 18%
Future ADT: 1668 (In 2018
)
