Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 242.3 m = 795.0 ft
Main Spans: 1 at 128 m = 420.0 ft
Approach Spans: 6
Skew: 0
Width, Roadway: 16 m = 52.5 ft (3 Lanes) and Out-To-Out: 16.9 m = 55.4 ft for a 14.6 m = 47.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 12.5 m = 41.0 ft
Location
Unknown [00800]: Cook County [031], Illinois [17]
Owned by State Highway Agency [01], DOT District: 1
1.3 M N IL 83
Condition
Deck: Satisfactory [6]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 72.3 metric ton = 79.5 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 39.2 metric ton = 43.1 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: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: September 2020 [0920] 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: 1 km = 0.6 mi
Traffic
ADT: 66050 (2020) and Trucks: 8%
Future ADT: 89713 (In 2032
)