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Nearby Bridges in NBI 2021: 1


ILL 106 over BLUFF CREEK (Route: 106)
Num:86000200000000x
Open: no restriction [A]
Built: 1953, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 26.3 m = 86.3 ft
Main Spans: 2 at 12.2 m = 40.0 ft
Approach Spans: 0
Skew: 45
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 11.1 m = 36.4 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Scott County [171], Illinois [17]
Owned by State Highway Agency [01], DOT District: 6
2 MI W WINCHESTER
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 64.8 metric ton = 71.3 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Inventory: 43.4 metric ton = 47.7 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: April 2020 [0420] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.3 km = 0.8 mi
Traffic
ADT: 1300 (2019) and Trucks: 15%
Future ADT: 1745 (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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