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Nearby Bridges in NBI 2021: 1


LOCAL over BOYER RIVER (Route: 0)
Num:129891x
Posted for load [P]
Built: 1971, 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: 39.9 m = 130.9 ft
Main Spans: 1 at 27.4 m = 89.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 5.2 m = 17.1 ft (1 Lanes) and Out-To-Out: 5.3 m = 17.4 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Crawford County [047], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
85370601
Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Serious [3]
Loading
Design:
Operating: 14 metric ton = 15.4 tons (Allowable Stress(AS) [2])
Inventory: 9.8 metric ton = 10.8 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 2020 [0420] 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: 0.8 km = 0.5 mi
Traffic
ADT: 10 (2019) and Trucks: 0%
Future ADT: 10 (In 2040 )

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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