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Nearby Bridges in NBI 2021: 1


LOCAL over UPPER IOWA RIVER (Route: 0)
Num:348430x
Posted for load [P]
Built: 0, Reconstructed: 1974
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] Truss - Thru [10]
Deck: Corrugated Steel [6] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 59.7 m = 195.9 ft
Main Spans: 1 at 34.7 m = 113.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 5.2 m = 17.1 ft (1 Lanes) and Out-To-Out: 5.5 m = 18.0 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 3.05 m = 10.0 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Winneshiek County [191], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
99073607
Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Poor [4]
Loading
Design:
Operating: 21.5 metric ton = 23.7 tons (Allowable Stress(AS) [2])
Inventory: 14.3 metric ton = 15.7 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Equal to present minimum criteria [6] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: March 1999 [399] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 50 (2017) and Trucks: 0%
Future ADT: 50 (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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