Bridge Type
Main Span(s): Concrete [1] Arch - Deck [11]
Approach Span(s): Concrete continuous [2] Tee beam [04]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 263 m = 862.9 ft
Main Spans: 3 at 53.6 m = 175.9 ft
Approach Spans: 12
Skew: 0
Width, Roadway: 21 m = 68.9 ft (2 Lanes) and Out-To-Out: 23 m = 75.5 ft for a 21.9 m = 71.9 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
COMMERCIAL STREET BRIDGE
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 44.5 metric ton = 49.0 tons (Load Factor(LF) [1])
Inventory: 26.3 metric ton = 28.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Superior to present desirable criteria [9]
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: June 1999 [699] 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: 93316 (2021) and Trucks: 5%
Future ADT: 53599 (In 2032
)
