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Nearby Bridges in NBI 2021: 1


USH 18-STH 60 over MISSISSIPPI RIVER 02 (Route: 18)
Num:B12002800000000x
Open: no restriction [A]
Built: 1974, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 584.1 m = 1916.4 ft
Main Spans: 10 at 106.7 m = 350.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 13.4 m = 44.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 18.6 m = 61.0 ft
Location
Prairie du Chien [65050]: Crawford County [023], Wisconsin [55]
Owned by State Highway Agency [01], DOT District: 5
0.7M E IOWA STATE LINE
Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 45.7 metric ton = 50.3 tons (Load Factor(LF) [1])
Inventory: 27.5 metric ton = 30.3 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
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 1999 [499] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 10.1 km = 6.3 mi
Traffic
ADT: 9300 (2019) and Trucks: 15%
Future ADT: 11160 (In 2039 )

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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