Bridge Type
Main Span(s): Prestressed concrete continuous [6] Box Beam or girders - Single or Spread [06]
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: 35.1 m = 115.2 ft
Main Spans: 2 at 17.1 m = 56.1 ft
Approach Spans: 0
Skew: 40
Width, Roadway: 7.8 m = 25.6 ft (2 Lanes) and Out-To-Out: 8.7 m = 28.5 ft for a 5.5 m = 18.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Rayburn [63560]: Armstrong County [005], Pennsylvania [42]
Owned by County Highway Agency [02], DOT District: 10
1500' South of SR 85
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 49.9 metric ton = 54.9 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 38.1 metric ton = 41.9 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.3 km = 0.8 mi
Traffic
ADT: 150 (2006) and Trucks: 9%
Future ADT: 210 (In 2026
)
