Bridge Type
Main Span(s): Prestressed concrete [5] 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: 20.1 m = 65.9 ft
Main Spans: 1 at 19.8 m = 65.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.9 m = 16.1 ft (1 Lanes) and Out-To-Out: 5.9 m = 19.4 ft for a 5.2 m = 17.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Londonderry [44464]: Dauphin County [043], Pennsylvania [42]
Owned by City or Municipal Highway Agency [04], DOT District: 8
SE ROYALTON/AMTRAK RR
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 84.4 metric ton = 92.8 tons (Load Factor(LF) [1])
Inventory: 49.9 metric ton = 54.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 1999 [999] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 25 (2019) and Trucks: 0%
Future ADT: 10 (In 2039
)
