Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Gravel [8]
Bridge Dimensions
Length: 36.9 m = 121.1 ft
Main Spans: 1 at 23.5 m = 77.1 ft
Approach Spans: 1
Skew: 0
Width, Roadway: 5.5 m = 18.0 ft (2 Lanes) and Out-To-Out: 5.5 m = 18.0 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]: Crawford County [047], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
82383302
Condition
Deck: Poor [4]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design:
Operating: 16.6 metric ton = 18.3 tons (Allowable Stress(AS) [2])
Inventory: 11.3 metric ton = 12.4 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: April 1999 [499] 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: 0.6 km = 0.4 mi
Traffic
ADT: 45 (2012) and Trucks: 11%
Future ADT: 45 (In 2039
)