Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 64 m = 210.0 ft
Main Spans: 3 at 20.7 m = 67.9 ft
Approach Spans: 0
Skew: 18
Width, Roadway: 15.8 m = 51.8 ft (4 Lanes) and Out-To-Out: 18.6 m = 61.0 ft for a 15.8 m = 51.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Allentown [02000]: Lehigh County [077], Pennsylvania [42]
Owned by County Highway Agency [02], DOT District: 5
BETWEEN 3RD & 4TH STREET
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: M 18 / H 20 [4]
Operating: 39 metric ton = 42.9 tons (Load Factor(LF) [1])
Inventory: 18.1 metric ton = 19.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Inspections
Date: October 1999 [1099] and Frequency: 24
Future Work
Work Needed: Bridge deck rehabilitation with only incidental widening. [36]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 14700 (1972) and Trucks: 20%
Future ADT: 20580 (In 2020
)