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Nearby Bridges in NBI 2021: 1


LOCAL RD over MIDDLE RIVER (Route: 0)
Num:233350x
Posted for load [P]
Built: 1930, Reconstructed: 1948
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): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 42.7 m = 140.1 ft
Main Spans: 1 at 42.7 m = 140.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.8 m = 15.7 ft (1 Lanes) and Out-To-Out: 5.2 m = 17.1 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 3.94 m = 12.9 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Madison County [121], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
75290606
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design:
Operating: 12.4 metric ton = 13.6 tons (Allowable Stress(AS) [2])
Inventory: 10.3 metric ton = 11.3 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 1.4 km = 0.9 mi
Traffic
ADT: 30 (2016) and Trucks: 0%
Future ADT: 30 (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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