Bridge Type
Main Span(s): Aluminum: Wrought Iron or Cast Iron [9] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 6.6 m = 21.7 ft
Main Spans: 1 at 6.6 m = 21.7 ft
Approach Spans: 0
Skew: 35
Width, Roadway: 7.9 m = 25.9 ft (2 Lanes) and Out-To-Out: 20.6 m = 67.6 ft for a 9.4 m = 30.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Butler [12140]: Branch County [023], Michigan [26]
Owned by County Highway Agency [02], DOT District: 5
BUTLER TWP SEC 1
Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design: MS 18 / HS 20 [5]
Operating: 57 metric ton = 62.7 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 34.3 metric ton = 37.7 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: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 2020 [1020] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 105 (2004) and Trucks: 4%
Future ADT: 159 (In 2024
)