Bridge Type
Main Span(s): Concrete [1] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]
Bridge Dimensions
Length: 22.2 m = 72.8 ft
Main Spans: 1 at 19.2 m = 63.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 18.3 m = 60.0 ft (5 Lanes) and Out-To-Out: 25.6 m = 84.0 ft for a 22.6 m = 74.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Dearborn [21000]: Wayne County [163], Michigan [26]
Owned by County Highway Agency [02], DOT District: 7
DEARBORN N/MICHIGAN
Condition
Deck: Not Applicable [N]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 52.2 metric ton = 57.4 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 31.1 metric ton = 34.2 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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: September 2020 [0920] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 26269 (1997) and Trucks: 5%
Future ADT: 20547 (In 2015
)
