Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
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: 45.1 m = 148.0 ft
Main Spans: 4 at 13.4 m = 44.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 12.8 m = 42.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Blencoe [06940]: Franklin County [069], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
93200902
Condition
Deck: Serious [3]
Superstructure: Poor [4]
Substructure: Poor [4]
Loading
Design: M 13.5 / H 15 [2]
Operating: 15.9 metric ton = 17.5 tons (Load Factor(LF) [1])
Inventory: 9.5 metric ton = 10.5 tons (Load Factor(LF) [1])
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: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: June 2020 [0620] and Frequency: 12
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: 490 (2017) and Trucks: 0%
Future ADT: 490 (In 2040
)