Bridge Type
Main Span(s): Concrete [1] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Gravel [8]
Bridge Dimensions
Length: 11.3 m = 37.1 ft
Main Spans: 1 at 10.7 m = 35.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 5.3 m = 17.4 ft (2 Lanes) and Out-To-Out: 6.5 m = 21.3 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Polk County [153], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
81242601
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 29.5 metric ton = 32.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 24.9 metric ton = 27.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: May 1999 [599] and Frequency: 24
Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 180 (2016) and Trucks: 16%
Future ADT: 180 (In 2039
)
