Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 31.5 m = 103.4 ft
Main Spans: 2 at 15.7 m = 51.5 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 8.9 m = 29.2 ft (2 Lanes) and Out-To-Out: 9.5 m = 31.2 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Watertown [84440]: Sanilac County [151], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
SEC 34-35 WATERTOWN TWP
Condition
Deck: Poor [4]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 63.3 metric ton = 69.6 tons (Load Factor(LF) [1])
Inventory: 37.8 metric ton = 41.6 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 300 (2010) and Trucks: 3%
Future ADT: 540 (In 2030
)
