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: 541 m = 1775.0 ft
Main Spans: 8 at 113 m = 370.8 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12 m = 39.4 ft (2 Lanes) and Out-To-Out: 13 m = 42.7 ft for a 12 m = 39.4 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 15.5 m = 50.9 ft
Location
Unknown [00000]: La Salle County [099], Illinois [17]
Owned by State Highway Agency [01], DOT District: 3
1.0 MI. S OF US 6
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 77.1 metric ton = 84.8 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 46 metric ton = 50.6 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 4750 (2019) and Trucks: 3%
Future ADT: 7149 (In 2032
)
