Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Steel plate (includes orthotropic) [5] with Wearing Surface: Gravel [8]
Bridge Dimensions
Length: 28 m = 91.9 ft
Main Spans: 1 at 26.8 m = 87.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.3 m = 20.7 ft (2 Lanes) and Out-To-Out: 6.5 m = 21.3 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Allamakee County [005], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
A00170400
Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 37.3 metric ton = 41.0 tons (Allowable Stress(AS) [2])
Inventory: 25.8 metric ton = 28.4 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 10 (2017) and Trucks: 0%
Future ADT: 10 (In 2040
)
