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: 146.9 m = 482.0 ft
Main Spans: 3 at 39.6 m = 129.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 6.1 m = 20.0 ft (2 Lanes) and Out-To-Out: 6.7 m = 22.0 ft for a 11.6 m = 38.1 ft approaching roadway.
Vertical Clearance: 3.96 m = 13.0 ft and Navigational Clearance: 0 = N/A
Location
Unknown [03792]: Black Hawk County [013], Iowa [19]
Owned by City or Municipal Highway Agency [04], DOT District: 0
0
Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Serious [3]
Loading
Design: HL93 [A]
Operating: 13.6 metric ton = 15.0 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 10.4 metric ton = 11.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 1999 [1099] 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: 0.6 km = 0.4 mi
Traffic
ADT: 1640 (2017) and Trucks: 0%
Future ADT: 1640 (In 2039
)