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Nearby Bridges in NBI 2021: 2


LOCAL over MID NODAWAY RIVER (Route: 0)
Num:54950x
Bridge closed to all traffic [K]
Built: 1948, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

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] Stringer/Multi-beam or girder [02]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 40.8 m = 133.9 ft
Main Spans: 1 at 27.4 m = 89.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 4.9 m = 16.1 ft (2 Lanes) and Out-To-Out: 5.2 m = 17.1 ft for a 7 m = 23.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Adair County [001], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
74320503
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Critical [2]
Loading
Design:
Operating: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Inventory: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural:
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: May 2020 [0520] and Frequency: 12
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 15 (2012) and Trucks: 0%
Future ADT: 15 (In 2040 )
INDIAN AVE over STREAM (Route: 0)
Num:54941x
Open: no restriction [A]
Built: 2015, 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): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 9.4 m = 30.8 ft
Main Spans: 1 at 8.8 m = 28.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.6 m = 24.9 ft (2 Lanes) and Out-To-Out: 7.7 m = 25.3 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Adair County [001], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
0.1 mi S of 280 on Indian
Condition
Deck: Excellent [9]
Superstructure: Excellent [9]
Substructure: Excellent [9]
Loading
Design: MS 18 / HS 20 [5]
Operating: 77.3 metric ton = 85.0 tons (Load Factor(LF) [1])
Inventory: 46.3 metric ton = 50.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Superior to present desirable criteria [9]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 10 (2012) and Trucks: 0%
Future ADT: 10 (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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