Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] Girder and floorbeam system [03]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 465.7 m = 1528.0 ft
Main Spans: 3 at 112.8 m = 370.1 ft
Approach Spans: 11
Skew: 99
Width, Roadway: 8.4 m = 27.6 ft (2 Lanes) and Out-To-Out: 11.6 m = 38.1 ft for a 8.2 m = 26.9 ft approaching roadway.
Vertical Clearance: 5.39 m = 17.7 ft and Navigational Clearance: 579 m = 1899.7 ft
Location
East Deer [21024]: Allegheny County [003], Pennsylvania [42]
Owned by State Highway Agency [01], DOT District: 11
New Kensington Bridge
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 45.4 metric ton = 49.9 tons (Load Factor(LF) [1])
Inventory: 27.2 metric ton = 29.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: March 1999 [399] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 15368 (2021) and Trucks: 7%
Future ADT: 20700 (In 2032
)
