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Nearby Bridges in NBI 2021: 1


IL 7 SOUTHWEST H over CAL SAG CHANNEL (Route: 7)
Num:16046400000000x
Open: no restriction [A]
Built: 1931, Reconstructed: 2003
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0.1 Kilometers)

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: 105.6 m = 346.5 ft
Main Spans: 1 at 65.8 m = 215.9 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 13.3 m = 43.6 ft (4 Lanes) and Out-To-Out: 18.4 m = 60.4 ft for a 13.3 m = 43.6 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 7.9 m = 25.9 ft
Location
Unknown [04490]: Cook County [031], Illinois [17]
Owned by State Highway Agency [01], DOT District: 1
0.5 M NE IL 83
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 84.9 metric ton = 93.4 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Inventory: 54.1 metric ton = 59.5 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 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: July 1999 [799] and Frequency: 24
Future Work
Work Needed: Bridge deck rehabilitation with only incidental widening. [36]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 21300 (2019) and Trucks: 5%
Future ADT: 23999 (In 2032 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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