Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 76.8 m = 252.0 ft
Main Spans: 3 at 45.7 m = 149.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 5.2 m = 17.1 ft (2 Lanes) and Out-To-Out: 5.3 m = 17.4 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]: Mills County [129], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
71410201
Condition
Deck: Serious [3]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 6.7 metric ton = 7.4 tons (Load Factor(LF) [1])
Inventory: 4 metric ton = 4.4 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] 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: 0.5 km = 0.3 mi
Traffic
ADT: 40 (2016) and Trucks: 0%
Future ADT: 40 (In 2039
)