Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 90.8 m = 297.9 ft
Main Spans: 4 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 7.9 m = 25.9 ft (2 Lanes) and Out-To-Out: 9.8 m = 32.2 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Hardin County [083], Iowa [19]
Owned by County Highway Agency [02], DOT District: 1
86190502
Condition
Deck: Serious [3]
Superstructure: Fair [5]
Substructure: Serious [3]
Loading
Design: M 18 / H 20 [4]
Operating: 36.6 metric ton = 40.3 tons (Load Factor(LF) [1])
Inventory: 21.9 metric ton = 24.1 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: February 2020 [0220] and Frequency: 12
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 1.3 km = 0.8 mi
Traffic
ADT: 1030 (2017) and Trucks: 18%
Future ADT: 1030 (In 2040
)
