Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 650.7 m = 2134.9 ft
Main Spans: 27 at 35.8 m = 117.5 ft
Approach Spans: 0
Skew: 21
Width, Roadway: 21 m = 68.9 ft (5 Lanes) and Out-To-Out: 22 m = 72.2 ft for a 26.8 m = 87.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [01051]: Cook County [031], Illinois [17]
Owned by State Highway Agency [01], DOT District: 1
2.5 M SW DAN RYAN
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 72.3 metric ton = 79.5 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 43.4 metric ton = 47.7 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge with deck rehabilitation or replacement. [34]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 72750 (2020) and Trucks: 8%
Future ADT: 95069 (In 2032
)