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: 9.3 m = 30.5 ft
Main Spans: 1 at 8.2 m = 26.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.2 m = 20.3 ft (2 Lanes) and Out-To-Out: 7.5 m = 24.6 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Whiteford [86740]: Monroe County [115], Michigan [26]
Owned by County Highway Agency [02], DOT District: 6
.15 MI E OF LENAWEE CO LI
Condition
Deck: Good [7]
Superstructure: Poor [4]
Substructure: Poor [4]
Loading
Design:
Operating: 38.2 metric ton = 42.0 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 23 metric ton = 25.3 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Basically intolerable requiring high priority of replacement [2]
Waterway: Better than present minimum criteria [7] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: October 2020 [1020] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 1.4 km = 0.9 mi
Traffic
ADT: 480 (2017) and Trucks: 15%
Future ADT: 552 (In 2037
)
