Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
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: 14.6 m = 47.9 ft
Main Spans: 1 at 13.4 m = 44.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.8 m = 15.7 ft (2 Lanes) and Out-To-Out: 5.5 m = 18.0 ft for a 3 m = 9.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Londonderry [44456]: Chester County [029], Pennsylvania [42]
Owned by County Highway Agency [02], DOT District: 6
LONDONDERRY HIGH 3689-D6
Condition
Deck: Good [7]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design:
Operating: 40.8 metric ton = 44.9 tons (Load Factor(LF) [1])
Inventory: 24.5 metric ton = 27.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Better than present minimum criteria [7] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 103 (2019) and Trucks: 9%
Future ADT: 126 (In 2039
)
