Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 499.6 m = 1639.2 ft
Main Spans: 5 at 92.1 m = 302.2 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 24 m = 78.7 ft (4 Lanes) and Out-To-Out: 25.7 m = 84.3 ft for a 25.9 m = 85.0 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 State Highway Agency [01], DOT District: 1
1.5 mi. W of Jct. SR S56
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Very Good [8]
Loading
Design: MS 18 / HS 20 [5]
Operating: 57.7 metric ton = 63.5 tons (Load Factor(LF) [1])
Inventory: 34.6 metric ton = 38.1 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: August 2020 [0820] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 8700 (2019) and Trucks: 26%
Future ADT: 8700 (In 2040
)
