Bridge Type
Main Span(s): Concrete continuous [2] Segmental box girder [21]
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: 716.3 m = 2350.2 ft
Main Spans: 6 at 162.2 m = 532.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 17.7 m = 58.1 ft (3 Lanes) and Out-To-Out: 18.7 m = 61.4 ft for a 17.7 m = 58.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 26.8 m = 87.9 ft
Location
Harmar [32624]: Allegheny County [003], Pennsylvania [42]
Owned by State Toll Authority [31], DOT District: 11
Allegheny River
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: HL93 [A]
Operating: 34.5 metric ton = 38.0 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 32.7 metric ton = 36.0 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 3.5 km = 2.2 mi
Traffic
ADT: 16799 (2010) and Trucks: 17%
Future ADT: 19819 (In 2030
)