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: Other [9]
Bridge Dimensions
Length: 89.3 m = 293.0 ft
Main Spans: 3 at 37.5 m = 123.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 12.2 m = 40.0 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Allerton [00880]: Clinton County [027], Illinois [17]
Owned by State Highway Agency [01], DOT District: 8
AT CARLYLE
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Very Good [8]
Loading
Design: MS 18 / HS 20 [5]
Operating: 85.9 metric ton = 94.5 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 51.5 metric ton = 56.7 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: Meets minimum tolerable limits to be left in place as is [4]
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: 24
Future Work
Work Needed:
Bridge Detour: 7.1 km = 4.4 mi
Traffic
ADT: 7400 (2019) and Trucks: 10%
Future ADT: 6210 (In 2032
)
