Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Wood or timber [7] Stringer/Multi-beam or girder [02]
Deck: Wood or Timber [8] with Wearing Surface: Gravel [8]
Bridge Dimensions
Length: 17.4 m = 57.1 ft
Main Spans: 1 at 10.1 m = 33.1 ft
Approach Spans: 1
Skew: 0
Width, Roadway: 4.9 m = 16.1 ft (2 Lanes) and Out-To-Out: 4.9 m = 16.1 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]: Adair County [001], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
76301802
Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design:
Operating: 21 metric ton = 23.1 tons (Allowable Stress(AS) [2])
Inventory: 13.7 metric ton = 15.1 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: May 1999 [599] 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: 0.5 km = 0.3 mi
Traffic
ADT: 15 (2012) and Trucks: 7%
Future ADT: 15 (In 2039
)
