Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Steel [3] Girder and floorbeam system [03]
Deck: Closed Grating [4] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 124.3 m = 407.8 ft
Main Spans: 1 at 53 m = 173.9 ft
Approach Spans: 5
Skew: 20
Width, Roadway: 6.9 m = 22.6 ft (2 Lanes) and Out-To-Out: 7.5 m = 24.6 ft for a 9.4 m = 30.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 5.2 m = 17.1 ft
Location
Unknown [02865]: Will County [197], Illinois [17]
Owned by State Highway Agency [01], DOT District: 1
0.25 M W IL 53
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 49.6 metric ton = 54.6 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Inventory: 36 metric ton = 39.6 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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 1999 [699] and Frequency: 24
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: 12300 (2019) and Trucks: 5%
Future ADT: 21054 (In 2032
)
