Bridge Type
Main Span(s): Concrete continuous [2] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 19.5 m = 64.0 ft
Main Spans: 3 at 7.3 m = 24.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 10.3 m = 33.8 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
Grosse Ile [35420]: Wayne County [163], Michigan [26]
Owned by County Highway Agency [02], DOT District: 7
GROSSE ILE T S/GROH
Condition
Deck: Serious [3]
Superstructure: Serious [3]
Substructure: Serious [3]
Loading
Design: M 18 / H 20 [4]
Operating: 26.6 metric ton = 29.3 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 15.9 metric ton = 17.5 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: April 2020 [0420] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 15.8 km = 9.8 mi
Traffic
ADT: 2177 (1992) and Trucks: 2%
Future ADT: 2286 (In 2015
)
