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: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 184.4 m = 605.0 ft
Main Spans: 5 at 41.1 m = 134.8 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11.6 m = 38.1 ft (2 Lanes) and Out-To-Out: 12.6 m = 41.3 ft for a 13.7 m = 44.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Amity [01945]: Polk County [153], Iowa [19]
Owned by State Highway Agency [01], DOT District: 1
2.1 mi. S of jct. I-235
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 62.4 metric ton = 68.6 tons (Load Factor(LF) [1])
Inventory: 37.4 metric ton = 41.1 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Better than present minimum criteria [7]
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: January 2020 [0120] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 12950 (2019) and Trucks: 3%
Future ADT: 12950 (In 2040
)