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: 18.3 m = 60.0 ft
Main Spans: 1 at 17.6 m = 57.7 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (2 Lanes) and Out-To-Out: 8.5 m = 27.9 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Ralph [66920]: Dickinson County [043], Michigan [26]
Owned by County Highway Agency [02], DOT District: 1
IN RALPH
Condition
Deck: Very Good [8]
Superstructure: Fair [5]
Substructure: Very Good [8]
Loading
Design:
Operating: 40.6 metric ton = 44.7 tons ()
Inventory: 24.3 metric ton = 26.7 tons ()
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: Better than present minimum criteria [7] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: September 2020 [0920] 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: 5.6 km = 3.5 mi
Traffic
ADT: 250 (2015) and Trucks: 5%
Future ADT: 450 (In 2035
)
