Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] 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: 31.7 m = 104.0 ft
Main Spans: 1 at 15.5 m = 50.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 5.8 m = 19.0 ft (2 Lanes) and Out-To-Out: 6.1 m = 20.0 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Mahaska County [123], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
74170107
Condition
Deck: Poor [4]
Superstructure: Fair [5]
Substructure: Poor [4]
Loading
Design:
Operating: 18 metric ton = 19.8 tons (Allowable Stress(AS) [2])
Inventory: 9.9 metric ton = 10.9 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: December 2020 [1220] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 70 (2018) and Trucks: 0%
Future ADT: 70 (In 2040
)
