Bridge Type
Main Span(s): Concrete [1] Tee beam [04]
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: 14.3 m = 46.9 ft
Main Spans: 1 at 13.1 m = 43.0 ft
Approach Spans: 0
Skew: 21
Width, Roadway: 17.7 m = 58.1 ft (5 Lanes) and Out-To-Out: 30.5 m = 100.1 ft for a 30.5 m = 100.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Pittsburgh [61000]: Allegheny County [003], Pennsylvania [42]
Owned by State Highway Agency [01], DOT District: 11
750' SW FT PITT TUNNELS
Condition
Deck: Not Applicable [N]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 77.1 metric ton = 84.8 tons (Load Factor(LF) [1])
Inventory: 46.3 metric ton = 50.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: July 1999 [799] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 74663 (2021) and Trucks: 8%
Future ADT: 82034 (In 2032
)
