Bridge Type
Main Span(s): Concrete continuous [2] Slab [01]
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: 35.4 m = 116.1 ft
Main Spans: 3 at 13.7 m = 44.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 10.1 m = 33.1 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00300]: Audubon County [009], Iowa [19]
Owned by City or Municipal Highway Agency [04], DOT District: 0
190' East of US HWY 71
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 48.3 metric ton = 53.1 tons (Allowable Stress(AS) [2])
Inventory: 29 metric ton = 31.9 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
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: October 1999 [1099] and Frequency: 24
Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 651 (1998) and Trucks: 0%
Future ADT: 651 (In 2039
)