Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Steel [3] Girder and floorbeam system [03]
Deck: Other [9] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 100.9 m = 331.1 ft
Main Spans: 1 at 50.6 m = 166.0 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (4 Lanes) and Out-To-Out: 17.1 m = 56.1 ft for a 13.1 m = 43.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 4.3 m = 14.1 ft
Location
Unknown [02865]: Will County [197], Illinois [17]
Owned by State Highway Agency [01], DOT District: 1
0.8 MI W OF ILL 171
Condition
Deck: Fair [5]
Superstructure: Critical [2]
Substructure: Poor [4]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 46 metric ton = 50.6 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 27.5 metric ton = 30.3 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry:
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 12
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 6200 (2019) and Trucks: 10%
Future ADT: 12069 (In 2032
)