Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
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: 29.3 m = 96.1 ft
Main Spans: 1 at 27.4 m = 89.9 ft
Approach Spans: 0
Skew: 45
Width, Roadway: 5.8 m = 19.0 ft (2 Lanes) and Out-To-Out: 6.2 m = 20.3 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 [01152]: Adair County [001], Iowa [19]
Owned by City or Municipal Highway Agency [04], DOT District: 0
77320300
Condition
Deck: Poor [4]
Superstructure: Poor [4]
Substructure: Poor [4]
Loading
Design:
Operating: 16.3 metric ton = 17.9 tons (Allowable Stress(AS) [2])
Inventory: 7.3 metric ton = 8.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: March 2021 [0321] 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: 152 (1998) and Trucks: 0%
Future ADT: 152 (In 2041
)