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Nearby Bridges in NBI 2021: 2


I 535 over ST LOUIS R; RR:STREET (Route: 535)
Num:9030x
Posted for load [P]
Built: 1961, Reconstructed: 1993
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Truss - Thru [10]
Approach Span(s): Steel continuous [4] Girder and floorbeam system [03]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 2432.3 m = 7980.4 ft
Main Spans: 3 at 182.9 m = 600.1 ft
Approach Spans: 49
Skew: 0
Width, Roadway: 17.9 m = 58.7 ft (4 Lanes) and Out-To-Out: 19.4 m = 63.7 ft for a 17.7 m = 58.1 ft approaching roadway.
Vertical Clearance: 5.82 m = 19.1 ft and Navigational Clearance: 36.6 m = 120.1 ft
Location
Duluth [17000]: St. Louis County [137], Minnesota [27]
Owned by State Highway Agency [01], DOT District: 1
1.3 SE OF JCT TH 35
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 35.9 metric ton = 39.5 tons (Load Factor(LF) [1])
Inventory: 21.6 metric ton = 23.8 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 assessed or calculated scour condition. [5]
Inspections
Date: July 2020 [0720] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 1.3 km = 0.8 mi
Traffic
ADT: 33021 (2019) and Trucks: 6%
Future ADT: 32500 (In 2039 )
IH 535-USH 53 over ST LOUIS BAY (Route: 535)
Num:B16000500000000x
Posted for load [P]
Built: 1961, Reconstructed: 1994
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Arch - Thru [12]
Approach Span(s): Steel continuous [4] Girder and floorbeam system [03]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 2433.8 m = 7985.3 ft
Main Spans: 3 at 182.9 m = 600.1 ft
Approach Spans: 49
Skew: 0
Width, Roadway: 17.7 m = 58.1 ft (4 Lanes) and Out-To-Out: 19.5 m = 64.0 ft for a 16.8 m = 55.1 ft approaching roadway.
Vertical Clearance: 5.86 m = 19.2 ft and Navigational Clearance: 30.5 m = 100.1 ft
Location
Superior [78650]: Douglas County [031], Wisconsin [55]
Owned by State Highway Agency [01], DOT District: 8
0.7M N JCT USH 53
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 35.9 metric ton = 39.5 tons (Load Factor(LF) [1])
Inventory: 21.1 metric ton = 23.2 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: July 1999 [799] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 2.2 km = 1.4 mi
Traffic
ADT: 33900 (2018) and Trucks: 0%
Future ADT: 33900 (In 2038 )

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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