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: 36.3 m = 119.1 ft
Main Spans: 1 at 35.1 m = 115.2 ft
Approach Spans: 0
Skew: 44
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 15.2 m = 49.9 ft for a 14.6 m = 47.9 ft approaching roadway.
Vertical Clearance: 4.53 m = 14.9 ft and Navigational Clearance: 0 = N/A
Location
Silver Spring [70792]: Cumberland County [041], Pennsylvania [42]
Owned by State Toll Authority [31], DOT District: 8
SILVER SPRING TWP
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 58.1 metric ton = 63.9 tons (Load Factor(LF) [1])
Inventory: 34.5 metric ton = 38.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: February 1999 [299] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 9647 (2020) and Trucks: 6%
Future ADT: 13802 (In 2030
)
